Journal articles: 'Software Defined Radio (SDR)'

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Limpraptono, Yudi, Vivi Nur Cholidah, and Muhammad Rifky Arrohman. "DESAIN SOFTWARE DEFINED RADIO TRANSCEIVER BERBASIS RED PITAYA." Jurnal Mnemonic 6, no. 2 (December 30, 2023): 157–62. http://dx.doi.org/10.36040/mnemonic.v6i2.8126.

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Software defined radio (SDR) adalah paradigma baru dalam desain perangkat komunikasi wireless. Teknologi SDR saat ini digunakan secara luas pada bidang telekomunikasi komersial, telepon bergerak dan banyak digunakan pada kalangan komunitas radio amatir. SDR adalah suatu sistem radio dimana komponen-komponennya yang biasanya di bangun oleh perangkat keras (mixer, filter, modulator, demodulator dll) digantikan fungsinya oleh perangkat lunak. Berbagai desain transceiver berbasis SDR yang bekerja pada band high frequency (HF) telah banyak diaplikasikan, dan berbagai perangkat lunak aplikasi SDR telah dikembangkan. Perangkat transceiver berbasis SDR cenderung digemari oleh komunitas radio amatir dikarenakan kesederhanaan dari rangkaian elektroniknya dan kualitas kinerjanya yang baik. Namun permasalahan yang sering dijumpai adalah bahwa pengguna harus menggunakan aplikasi dengan menggunakan personal komputer, bagi orang awam terkesan menggunakan Radio transceiver SDR terasa ribet dan sangat sulit untuk dioperasikan. Dari permasalahan tersebut, maka pada penelitian ini diusulkan sebuah purwarupa radio transceiver berbasis SDR Red pitaya dengan aplikasi yang tertanam pada sebuah Raspberry Pi. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian dan pengembangan atau R&D. Setelah dilakukan pengujian pada radio SDR transceiver yang telah direalisasikan dapat disimpulkan bahwa sistem dapat bekerja dengan sempurna dan kinerja sistem adalah sangat baik dengan hasil pengujian frekuensi memberikan error sebesar 0.000068%, pengujian terhadap hasil pemodulasian memberikan hasil readability 92,5%, Strengh 9, dan Quality 9. Diharapkan hasil penelitian ini dapat berkontribusi dan dapat dipakai sebagai panduan dalam desain radio transceiver SDR yang efisien dikalangan pengggiat radio amatir.

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da Silva, Fabrício A. B., David F. C. Moura, and Juraci F. Galdino. "Classes of Attacks for Tactical Software Defined Radios." International Journal of Embedded and Real-Time Communication Systems 3, no. 4 (October 2012): 57–82. http://dx.doi.org/10.4018/jertcs.2012100104.

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This survey presents a classification of attacks that Software Communications Architecture (SCA) compliant Software Defined Radios (SDR) can suffer. This paper also discusses how attack mitigation strategies can impact the development of a SCA-compliant software infrastructure and identifies several research directions related to SDR security. The SCA standard was originally proposed by the Joint Tactical Radio System program (JTRS), which is a program for the development of military tactical radios sponsored by the US Department of Defense. The classification presented in this paper is based on attack results on the radio set, which can also be associated with the adversary’s objectives when planning an intrusion. The identification of classes of attacks on a radio, along with the associated threats and vulnerabilities, is the first step in engineering a secure SDR system. It precedes the identification of security requirements and the development of security mechanisms. Therefore, the identification of classes of attacks is a necessary step for the definition of realistic and relevant security requirements.

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Tato, Anxo. "Software Defined Radio: A Brief Introduction." Proceedings 2, no. 18 (September 19, 2018): 1196. http://dx.doi.org/10.3390/proceedings2181196.

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In this short article the concept of Software Defined Radio (SDR) is introduced and compared with the traditional radio. Then, a research project of atlanTTic center which used this technology was briefly presented and lastly, we include a reference to some dissemination activities related with SDR to be developed shortly.

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Xu, Yihan, Reza K. Amineh, Ziqian Dong, Fang Li, Kayla Kirton, and Michael Kohler. "Software Defined Radio-Based Wireless Sensing System." Sensors 22, no. 17 (August 26, 2022): 6455. http://dx.doi.org/10.3390/s22176455.

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In this paper, we investigate the application of using software-defined radio (SDR) and surface acoustic wave (SAW) device for wireless measurement of the response of in situ sensors. SDR uses software to realize different communication functions. After collecting the magnitude and phase of the response at discrete frequencies, we apply inverse Fourier transform to analyze the time domain responses which, in turn, allows for monitoring the changes of the response of the in situ sensor. We employ microwave signal flow graph concepts to improve the quality of the received signals. Comparing the normalized results obtained by SDR with those obtained from a commercial vector network analyzer (VNA), we demonstrate that the results are sufficiently close, and the SDR-based experiments can provide satisfactory measurement of the in-situ sensors. The objective is to eventually employ this wireless measurement system for soil nutrient sensing.

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Sârbu, Annamaria, and Dumitru Neagoie. "Wi-Fi Jamming Using Software Defined Radio." International conference KNOWLEDGE-BASED ORGANIZATION 26, no. 3 (June 1, 2020): 162–66. http://dx.doi.org/10.2478/kbo-2020-0132.

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AbstractIn this article we present software defined radio (SDR) instrumentation used for interfering or jamming Wi-Fi networks. A Wi-Fi network analyzer application was used together with a low cost, commercially available SDR, Hack RF one, to conduct aimed interference on a 802.11 b/g/n network. A GNU radio flowchart was used to control the radio transceiver (SDR) by emitting a jamming signal aimed towards the targeted client by means of a directional antenna. Various signal bandwidths and distance from the targeted device were tested to characterize the adequate parameters of an effective jamming signal with respect to the calculated signal to noise ratio (SNR). Jamming efficiency was evaluated by means of a Wi-Fi connectivity speed test application installed on the targeted device, in order to measure connectivity degradation if complete jamming was not possible. Results presented suggest that Wi-Fi jamming is possible by means of SDR technology, providing insights on the methodology used and initial optimisation procedures in the test environment.

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Błachut, Marek, and Piotr Pogorzelec. "The application of software defined radios in unmanned aerial vehicles." Scientific Journal of the Military University of Land Forces 205, no. 3 (September 23, 2022): 375–96. http://dx.doi.org/10.5604/01.3001.0016.0037.

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The article addresses the application of software defined radios (SDR) on modern battlefields. Above all, it focuses on the application of the SDR technology in communication with unmanned aerial vehicles. It also reviews some solutions applied in the armed forces of Finland, United States, Poland, Turkey, and Israel. It outlines the potential of these solutions and considers the main direction of development of the SDR technology, which is the cognitive radio.

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Kuvshinov, O. A., and O. V. Plokhikh. "Application of Software-defined radio in communication systems." Ural Radio Engineering Journal 6, no. 2 (2022): 140–59. http://dx.doi.org/10.15826/urej.2022.6.2.002.

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The paper presents examples of solving urgent telecommunication tasks using the technology of Software-defined radio systems (SDR). The problem and the role of SDR in its solution are described for each example. The comparison of the main characteristics and structure of the hardware components of the SDR, which are used in the considered examples, is given. The results of the work with the debugging module for the Russian microchip 1288HK1T according to the scenario of the demo version of functioning are presented.

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Tan, Soon Heng Mavric, and Chai Kiat Yeo. "GPS Location Spoofing and FM Broadcast Intrusion Using Software-Defined Radio." International Journal of Interdisciplinary Telecommunications and Networking 12, no. 4 (October 2020): 104–17. http://dx.doi.org/10.4018/ijitn.2020100108.

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This paper makes use of a simple and inexpensive software-defined radio (SDR) to demonstrate the potential threats posed to wireless communication. SDR is a radio communication system where components that are traditionally implemented in hardware are being replaced via software running on computing devices. The authors make use of a simple SDR to demonstrate how local disruption to wireless communication can be easily carried out. In particular, the authors show how FM radio broadcast can be hijacked and the spoofing of GPS location signals using a single SDR on a local basis as well as how Google Maps apps on an Android phone can be fooled by the spoofed GPS data. The authors also show how an ‘autonomous' car can be re-routed via emulation with a rigged up remote control toy car. The spoofing of GPS signals is a potential threat to all GPS-based applications, especially when powerful radios are used. The security threats on GPS-based navigation especially for drones and autonomous vehicles are real.

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Sotyohadi, Sotyohadi, and Irrine Budi Sulistiawati. "DESAIN LOW NOISE TRANSCEIVER 7 MHZ BERBASIS SOFTWARE DEFINED RADIO (SDR)." Jurnal Mnemonic 2, no. 1 (December 14, 2019): 73–78. http://dx.doi.org/10.36040/mnemonic.v2i1.55.

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Software defined radio (SDR) adalah paradigma baru dalam desain perangkat komunikasi wireless. Teknologi SDR saat ini digunakan secara luas pada bidang telekomunikasi komersil seperti satelit komunikasi, telepon bergerak dan banyak digunakan pada kalangan komunitas radio amatir. SDR adalah suatu sistem radio dimana komponen-komponennya yang biasanya di bangun oleh perangkat keras (mixer, filter, modulator, demodulator dll) digantikan fungsinya oleh perangkat lunak. Software defined radio saat ini sangat dikenal dikalangan komunitas radio amatir di seluruh dunia. Berbagai desain transceiver berbasis SDR yang bekerja pada band high frequency (HF) telah banyak diaplikasikan, dan berbagai perangkat lunak aplikasi SDR telah dikembangkan. Perangkat transceiver berbasis SDR digemari oleh komunitas radio amatir dikarenakan rangkaian elektroniknya yang sederhana. Namun dari kelebihan tersebut muncul permasalahan yang sering dijumpai adalah noise pada penerima yang tinggi dan sensitivitas rendah. Dengan latar belakang permasalahan tersebut, maka pada penelitian ini dirancanglah suatu low noise transceiver 7 MHz berbasis software defined radio (SDR). Metode yang digunakan dalam mengurangi noise adalah dengan pemisahan grounding dari rangkaian digital, analog dan penguat RF serta pemilihan chip Tayloe detector yang memiliki nilai resistansi switch yang rendah yaitu 4 ohm. Berdasarkan hasil pengujian dengan menggunakan integrated circuit (IC) yang memiliki nilai resistansi switching yang rendah 4 ohm didapatkan kinerja transceiver yang lebih baik, dimana penerimaan lebih sensitive dan memiliki noise yang lebih rendah.

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Machado-Fernández, José Raúl. "Software Defined Radio: Basic Principles and Applications." REVISTA FACULTAD DE INGENIERÍA 24, no. 38 (December 28, 2014): 79. http://dx.doi.org/10.19053/01211129.3160.

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The author makes a review of the SDR (Software Defined Radio) technology, including hardware schemes and application fields. A low performance device is presented and several tests are executed with it using free software. With the acquired experience, SDR employment opportunities are identified for low-cost solutions that can solve significant problems. In addition, a list of the most important frameworks related to the technology developed in the last years is offered, recommending the use of three of them.

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BOIKO, JULIY, ILYA PYATIN, and IGOR PARKHOMEY. "SIGNAL PROCESSING AND SYNCHRONIZATION TECHNIQUE IN SOFTWARE-DEFINED RADIO SYSTEMS WITH OFDM." Herald of Khmelnytskyi National University. Technical sciences 307, no. 2 (May 2, 2022): 123–32. http://dx.doi.org/10.31891/2307-5732-2022-307-2-123-132.

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The article describes modern concepts for the development of Software-defined Radio (SDR) technology. A functional diagram of a software-defined radio station using the method of transmitting information with modulation based on Orthogonal Frequency Division Multiplexing (OFDM) is proposed. The conditions for ensuring symbol synchronization of OFDM signals are investigated. It is determined that the disruption of the orthogonality of OFDM symbols is accompanied by such phenomena as the occurrence of inter-symbol interference and inter-channel interference. The method of constellation diagrams was used to study the effect of errors caused by interference on the quality of processing of multiposition signals. The effect of interference in a channel from OFDM on the phase of signals during their processing is estimated. Mathematical models of signals with OFDM in the presence of interference effects are obtained. Two types of errors are considered, which are caused by carrier distortion. In particular, the occurrence of phase noise is possible, the cause of which is associated with the instability of the generating equipment of the carrier signals both on the transmitting and on the receiving side. Another factor is carrier offset due to Doppler frequency. The proposed SDR receiver structure is based on the digital IF architecture. This architecture has more flexibility than traditional RF architectures and is not sensitive to DC offset, LO leakage, etc. Moreover, since the I/Q up/down conversion is done digitally in the IF stage, the negative effects caused by I/Q imbalance will be minimized. The SDR consists of a small piece of hardware at the RF input, i.e., an antenna and a high-rate ADC capable of capturing and digitizing broadband radio signals. To increase the communication range in SDR, we use amplifiers in front of two DAC/ADC stages. The receiver has a low-noise amplifier to reduce the quantization noise of the transducer and increase the Signal-to-noise Ratio (SNR). The data is then processed on specialized computational units within the embedded system, enabling important demodulation, synchronization, and decoding techniques to be implemented.

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Yang, Yun Long, You Rong Lu, Qian Cai, and Ying Yong Lai. "Design of Software Defined Radio Platform Resource Model Based on SCA." Applied Mechanics and Materials 347-350 (August 2013): 3934–39. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.3934.

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Software Defined Radio (SDR) platform resource model is the description and organization of the SDR platform resource. Its the foundation of the SDR platform resource management. Through these years, the Software Communication Architecture (SCA) has becoming the most famous specification for SDR, which standardizes the description for the SDR platform resource. Aiming at the shortages of the resource model in SCA, this paper discusses a SDR platform resource model, proposes a transfer port model and a connection model, designs a nested data model for the SDR platform resource, and a plane graph model which is easy to analyze and process.

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Imam, Rayan, Lucilla Alfonsi, Luca Spogli, Claudio Cesaroni, Iman Ebrahimi Mehr, Alex Minetto, and Fabio Dovis. "Scintillation Climatology from a Software Defined Radio Receiver over Antarctica." Annals of Geophysics 67, no. 1 (May 21, 2024): PA108. http://dx.doi.org/10.4401/ag-9016.

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Software-Defined Radio (SDR) Global Navigation Satellite System (GNSS) receivers for operational Ionospheric Scintillation Monitoring (ISM) have faced challenges and were deemed failures by many research projects. The need for a highly stable oscillator and a robust real-time signal-tracking capability have been the main challenges. The Istituto Nazionale di Geofisica e Vulcanologia (INGV) led a project called DemoGRAPE (Demonstrator of GNSS Research and Application for Polar Environment) to deploy an SDR GNSS Receiver in SANAE IV Antarctica station, which has been continuously operating since January 2016. The SDR receiver was designed by the Navigation Signal Analysis and Simulation (NavSAS) group in collaboration with the Joint Research Centre (JRC) of the European Commission. The system deploys the SDR in parallel to a Septentrio PolaRxS ISM receiver. The two receivers are fed by the same receiving antenna (i.e., they share the same field of view and, hence, cross the same portion of the ionosphere) such that they receive quasi-identical signals except for the independent effects of their front-ends. The SDR produces as output a log file, equivalent to the ISM record produced by PolaRxS, that contains the amplitude and phase scintillation indexes. In addition to this, the SDR system records the raw digital samples of the GNSS signal when the internal algorithm of the receiver detects scintillation presence. These data can be used to replicate the scintillation event in the laboratory and perform dedicated post-processing of the raw signal itself. The system has been in operation for over seven years now, spanning more than half a solar cycle. It has recorded several geomagnetic storm events as well as abundant data in quiet conditions. To the best of our knowledge, this is the longest dataset of this nature (co-located PolaRxS and SDR receivers). We compare the performance of the two receivers by analyzing the scintillation climatology maps obtainable from both receivers' data. Here, the climatology is obtained using the well-established Ground Based Scintillation Climatology (GBSC) technique from the data provided by the two different receivers. The study shows that the SDR climatology maps under disturbed geomagnetic conditions are equivalent to those obtained from the PolaRxS receiver. Under quiet conditions, the SDR shows more scintillation events than the PolaRxS. Carefully inspecting the differences in the scintillation occurrence between the two receivers, they seem not to happen randomly but mainly concentrated along the expected (climatological) position of the auroral oval. This means that the SDR application for space weather monitoring could be possible and that the SDR could be utilizable as an informative tool by the ionospheric scintillation community.

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Popescu, Dimitrie C., and Rolland Vida. "A Primer on Software Defined Radios." Infocommunications journal 14, no. 3 (2022): 16–27. http://dx.doi.org/10.36244/icj.2022.3.3.

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The commercial success of cellular phone systems during the late 1980s and early 1990 years heralded the wireless revolution that became apparent at the turn of the 21st century and has led the modern society to a highly interconnected world where ubiquitous connectivity and mobility are enabled by powerful wireless terminals. Software defined radio (SDR) technology has played a major role in accelerating the pace at which wireless capabilities have advanced, in particular over the past 15 years, and SDRs are now at the core of modern wireless communication systems. In this paper we give an overview of SDRs that includes a discussion of drivers and technologies that have contributed to their continuous advancement, and presents the theory needed to understand the architecture and operation of current SDRs. We also review the choices for SDR platforms and the programming options that are currently available for SDR research, development, and teaching, and present case studies illustrating SDR use. Our hope is that the paper will be useful as a reference to wireless researchers and developers working in the industry or in academic settings on further advancing and refining the capabilities of wireless systems.

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Tsoeunyane, Lekhobola, Simon Winberg, and Michael Inggs. "Software-Defined Radio FPGA Cores: Building towards a Domain-Specific Language." International Journal of Reconfigurable Computing 2017 (2017): 1–28. http://dx.doi.org/10.1155/2017/3925961.

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This paper reports on the design and implementation of an open-source library of parameterizable and reusable Hardware Description Language (HDL) Intellectual Property (IP) cores designed for the development of Software-Defined Radio (SDR) applications that are deployed on FPGA-based reconfigurable computing platforms. The library comprises a set of cores that were chosen, together with their parameters and interfacing schemas, based on recommendations from industry and academic SDR experts. The operation of the SDR cores is first validated and then benchmarked against two other cores libraries of a similar type to show that our cores do not take much more logic elements than existing cores and that they support a comparable maximum clock speed. Finally, we propose our design for a Domain-Specific Language (DSL) and supporting tool-flow, which we are in the process of building using our SDR library and the Delite DSL framework. We intend to take this DSL and supporting framework further to provide a rapid prototyping system for SDR application development to programmers not experienced in HDL coding. We conclude with a summary of the main characteristics of our SDR library and reflect on how our DSL tool-flow could assist other developers working in SDR field.

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Tsoeunyane, Lekhobola, Simon Winberg, and Michael Inggs. "Automatic Configurable Hardware Code Generation for Software-Defined Radios." Computers 7, no. 4 (October 19, 2018): 53. http://dx.doi.org/10.3390/computers7040053.

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The development of software-defined radio (SDR) systems using field-programmable gate arrays (FPGAs) compels designers to reuse pre-existing Intellectual Property (IP) cores in order to meet time-to-market and design efficiency requirements. However, the low-level development difficulties associated with FPGAs hinder productivity, even when the designer is experienced with hardware design. These low-level difficulties include non-standard interfacing methods, component communication and synchronization challenges, complicated timing constraints and processing blocks that need to be customized through time-consuming design tweaks. In this paper, we present a methodology for automated and behavioral integration of dedicated IP cores for rapid prototyping of SDR applications. To maintain high performance of the SDR designs, our methodology integrates IP cores using characteristics of the dataflow model of computation (MoC), namely the static dataflow with access patterns (SDF-AP). We show how the dataflow is mapped onto the low-level model of hardware by efficiently applying low-level based optimizations and using a formal analysis technique that guarantees the correctness of the generated solutions. Furthermore, we demonstrate the capability of our automated hardware design approach by developing eight SDR applications in VHDL. The results show that well-optimized designs are generated and that this can improve productivity while also conserving the hardware resources used.

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Witte, Ernst Martin, Torsten Kempf, Venkatesh Ramakrishnan, Gerd Ascheid, Marc Adrat, and Markus Antweiler. "A seamless software defined radio development flow for waveform and prototype debugging." Journal of Telecommunications and Information Technology, no. 2 (June 25, 2023): 21–29. http://dx.doi.org/10.26636/jtit.2008.2.868.

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With the increasing number of wireless communication standards flexibility has gained more and more importance which has lead to the software defined radio (SDR) concept. However, SDR development has to face many challenges, among them are the questions how SDR systems can be designed to achieve flexibility, architectural efficiency, energy efficiency and portability at the same time. These requirements result in very elaborate architectures and a highly increased design complexity. To cope with such complexity, we proposed an SDR development flow. During the development of such SDR, debugging becomes more efficient on a prototype hardware implementation than on a simulation model. However, error analysis on a prototype suffers from strong limitations like a reduced state visibility. In this paper, an extension to the SDR development flow is presented and successfully applied to an example SDR. It allows for an efficient error analysis with the SDR simulation model by the feedback of stimulus data from the prototype.

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Estrela, Vania V. "Why Software-Defined Radio (SDR) Matters in Healthcare?" Medical Technologies Journal 3, no. 3 (November 11, 2019): 421–29. http://dx.doi.org/10.26415/2572-004x-vol3iss3p421-429.

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Sari, Sapriesty Nainy. "Kinerja Modulasi BPSK Modem Software Defined Radio pada DSK TMS320C6713." Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) 10, no. 1 (June 1, 2016): 1–4. http://dx.doi.org/10.21776/jeeccis.v10i1.424.

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Abstractâ€” Software Defined Radio (SDR) is a signal processing technology that optimizes the use of PC as a device supporting. With the application of SDR in wireless communication system so it will provide possibility and flexibility on manipulating DSP without the need of hardware changes. SDR modems are designed to take advantage of Digital Signal Processor Starter Kit (DSK) TMS320C6713 for baseband signal processing. In the implementation phase, the DSK is programmed directly using Matlab Simulink integration to build a system of modulation and demodulation Binary Phase Shift Keying (BPSK). Sampling frequency 8000 kHz is used with a variety of bit rate of 1 kbps and 2 kbps.

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Cwalina, Krzysztof, Piotr Rajchowski, and Jarosław Sadowski. "Wideband Radio Direction Finder Implemented in Software Defined Radio Technology." Applied Mechanics and Materials 817 (January 2016): 348–55. http://dx.doi.org/10.4028/www.scientific.net/amm.817.348.

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In the paper a wideband radio direction finder (RDF) implemented in software defined radio (SDR) technology and the results of hardware layer research, including developed antenna switching unit (ASU), are presented. The results of tests of the devices, which are the part of the software defined radio platform (SDRP), and antenna switching unit, confirmed the possibility of using selected components in the final solution.

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Surducan, V., M. Moudgill, G. Nacer, E. Surducan, P. Balzola, J. Glossner, S. Stanley, Meng Yu, and D. Iancu. "The Sandblaster Software-Defined Radio Platform for Mobile 4G Wireless Communications." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–9. http://dx.doi.org/10.1155/2009/384507.

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We present a tier 2 Software Defined-Radio platform (SDR), built around the latest Sandbridge Technologies' multithreaded Digital Signal Processor (DSP) SB3500, along with the description of major design steps taken to ensure the best radio link and computational performance. This SDR platform is capable of executing 4G wireless communication standards such as WiMAX Wave 2, WLAN 802.11 g, and LTE. Performance results for WiMAX are presented in the conclusion section.

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Teronpi, Khushboo, Kandarpa Kumar Sarma, Aradhana Misra, and Manasjyoti Bhuyan. "DTW based Modulation Detection- Verification using Software Defined Radio." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (August 10, 2021): 133–38. http://dx.doi.org/10.37394/23204.2021.20.18.

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Modulation detection is one of the major tasks of an intelligent receiver in a software defined radio (SDR). It is an intermediate step between signal detection and demodulation. In this paper we present the modulation detection based on Dynamic Time Warping (DTW) algorithm. Here the types of modulation that we use are QPSK, 8-PSK, 16-QAM and 64-QAM. The whole test and verification has been done with the help of SDR platform. After the test and trials of all the modulation schemes, it is observed that DTW provides a good efficiency with the accuracy of 93.75%.

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Reddy, Reddyvari Venkateswara, Akkireddy Venkata Karthik, Ayesha Kulsum, and Pasnoor Seethala. "Unlocking Security Risks: Exploring Vulnerabilities in Software-Defined Radio with RTL-SDR." International Journal for Research in Applied Science and Engineering Technology 12, no. 4 (April 30, 2024): 1194–99. http://dx.doi.org/10.22214/ijraset.2024.59984.

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Abstract: This study illustrates potential avenues for exploitation by utilizing RTL-SDR dongles to reveal Software-Defined Radio's (SDR) vulnerabilities. Using replay attacks, the study reveals the weakness of car key unlocking techniques, concentrating on static codes. The study also shows how RTL-SDR, in conjunction with SDR++ software, may use to intercept communications, posing major privacy concerns and enabling one to listen in on walkie-talkietalks. These findings demonstrate how urgently security measures are required to reduce the risks associated with RTL-SDR exploitation in a variety of industries. As the field of technology advances, the study advances our knowledge of potential threats in wireless communication systems and it emphasizes the security implementations to safeguard against unauthorized access and misuse.

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Moura, David Fernandes Cruz, Fabricio Alves Barbosa da Silva, and Juraci Ferreira Galdino. "Case Studies of Attacks over Adaptive Modulation Based Tactical Software Defined Radios." Journal of Computer Networks and Communications 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/703642.

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This paper presents case studies of attacks aimed at tactical software defined radios based on a classification with the most common sources of vulnerabilities, classes of attacks, and types of intrusions that military radio sets may suffer. Besides that, we also describe how attack mitigation strategies can impact the development of SDR infrastructures. By using such approach, we identify several possible sources of vulnerabilities, attacks, intrusions, and mitigation strategies, illustrating them onto typical tactical radio network deployment scenarios, as an initial and necessary step for the definition of realistic and relevant security requirements for military software defined radio applications.

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NEDELCHEV, Miroslav, Radostin DIMOV, and Stanimir PARVANOV. "ALGORITHM FOR APPLICATION OF INFORMATION FOR MANAGEMENT OF USERS SPATIAL DISPOSITION IN THE PROCESS OF AUTOMATED SOFTWARE-DEFINED RADIO COMMUNICATION NETWORK IMPLEMENTED BY ORTHOGONAL FREQUENCY DIVISION AND MULTIPLEXING." SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE 24 (July 28, 2023): 39–46. http://dx.doi.org/10.19062/2247-3173.2023.24.5.

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A software-defined radio (SDR) system is a radio communication system which uses software for the modulation and demodulation of radio signals. An SDR performs significant amounts of signal processing in a general purpose computer, or a reconfigurable piece of digital electronics. SDR can talk and listen to multiple channels at the same time, also it can be quickly and easily upgraded with enhanced features. In fact, the upgrade could be delivered over-the-air In the long run, SDR is expected to become the dominant technology in radio communications

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Bleiders, M., O. Antyufeyev, O. Patoka, A. Orbidans, A. Aberfelds, J. Steinbergs, V. Bezrukovs, and I. Shmeld. "Spectral Line Registration Backend Based on USRP X300 Software Defined Radio." Journal of Astronomical Instrumentation 09, no. 02 (June 2020): 2050009. http://dx.doi.org/10.1142/s2251171720500099.

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This paper presents implementation of spectrometer based on off-the-shelf software defined radio (SDR) Ettus Research USRP X300 equipped with TwinRX daughterboard. Parallelized software, employing Fast Fourier Transform (FFT), is developed which allows two channel spectrum processing in real time with bandwidths up to 50[Formula: see text]MHz per channel, sample resolution of 14 bits and FFT lengths up to 32k points. Measured Allan stability time of the spectrometer is at least 750 sin laboratory environment. Software has network server-type interface that allows to conveniently integrate the spectrometer in radio telescope observation control and monitoring system with versatility of SDR allowing to implement various observation modes, for example, total power detection functionality with high frequency selectivity, which allows to carry continuum amplitude calibration in presence of near-by radio frequency interference. Presented spectrometer has been successfully integrated and used at RT-32 and RT-16 radio telescopes of Ventspils International Radio Astronomy Centre.

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J, Abhishek S., Anirudh T. S, and Murigendrayya Hiremath. "Software Defined Radio SDR and Low Field Magnetic Resonance Imaging MRI -A Review." International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (June 30, 2018): 237–44. http://dx.doi.org/10.31142/ijtsrd12853.

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Wicaksono, Agung, and Eka Setia Nugraha. "Desain Modem Sistem Komunikasi Digital HF Berbasis Software Defined Radio." Edu Komputika Journal 8, no. 1 (June 30, 2021): 21–30. http://dx.doi.org/10.15294/edukomputika.v8i1.47297.

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Sistem komunikasi High Frequency (HF) bekerja menggunakan gelombang radio pada frekuensi 3-30 MHz yang merambat dalam bentuk skywave dengan bantuan lapisan ionosfer. Sistem komunikasi HF saat ini masih terbatas pada pengiriman suara, diharapkan dapat mengirimkan pesan berupa teks dengan menerapkan sistem komunikasi digital. Penelitian ini melaporkan desain modem sistem komunikasi digital HF menggunakan perangkat Software Defined Radio (SDR) untuk implementasi yang mudah. Modulasi dan Demodulasi memiliki peranan penting dalam sistem komunikasi digital. Evaluasi sistem dilakukan dengan eksperiment untuk mengukur Signal to Noise Ratio (SNR), Bit Error Rate (BER), Character Error Rate (CER), dan Frame Error Rate (FER) pada tipe pulse shaping Root Raised Cosine dengan Roll of Factor 0,5. Hasil eksperiment menunjukan bahwa implementasi sistem pada platform SDR dengan LabView sebagai user interface berhasil dilakukan.

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Korobeynikov, A. V., and M. A. Boyarshinov. "Development of a Bench for Analyzing the Radio Station Operation in the APCO P25, DMR and TETRA Communication Standards Based on Broadband Software-Defined Radios and GNU Radio Software Toolkit." Vestnik IzhGTU imeni M.T. Kalashnikova 25, no. 4 (December 22, 2022): 73–85. http://dx.doi.org/10.22213/2413-1172-2022-4-73-85.

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The article discusses the development of an instrument complex (bench, stand) for the study of digital radio communication standards: APCO P25, DMR and TETRA, based on software-defined radio systems (SDR) technologies in voice mode. The bench is based on the HackRF One broadband SDR transceiver and the GNU Radio open software toolkit. Along with the SDR transceiver HackRF One, it is proposed to use the SDR TV tuner AstroMeta Digital TV Dongle as an available receiver. The structure of the hardware and software parts of the bench is proposed. The software implementation of listed digital radio communication standards is based on the open libraries of the Osmocom project: the BoadBot OP25 and TETRA Live Monitor libraries. The operating system Linux Debian 10 and the software toolkit GNU Radio 3.7 were used for practical testing of the bench functioning. The practical testing results of the developed bench are presented both when interacting in voice mode with radio stations of the specified radio communication standards, and between the SDR transmitter HackRF One and the SDR TV tuner AstroMeta Digital TV Dongle. For the radio communication standards APCO P25 and DMR, the receiving and transmission modes of the speech signal have been practically tested on the developed bench, and for the radio communication standard TETRA, the modes of scanning the radio broadcast and receiving the speech signal have been tested. As a bench operability confirmation for the listed radio communication standards, the screenshots of programs implementing the specified modes of interaction between the bench hardware components are given. The proposed bench architecture allows to expand the list of supported radio standards. The developed bench can be used: 1) for educational purposes in the study of radio communication standards; 2) in the development and debugging of radio communication systems under development; 3) for control testing during the release of radio systems.

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Șorecău, Emil, Mirela Șorecău, Alexandru-Marius Vasile, and Paul Bechet. "Advanced Military Radio Channels Monitoring System Based on Software Defined Radio Platform: Preliminary Analysis." International conference KNOWLEDGE-BASED ORGANIZATION 29, no. 3 (June 1, 2023): 107–12. http://dx.doi.org/10.2478/kbo-2023-0083.

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Abstract The use of electromagnetic spectrum monitoring for military emissions is essential due to the mobility and diversity of military operations. A tactical communications system used in the military domain includes encrypted and unencrypted data, voice and video communications using wideband and narrowband waveforms. This research focuses on the development of a high capability monitoring system based on Software-Defined Radio (SDR) technology for monitoring military waveforms. The implemented system has been tested for its ability to detect both wideband military waveforms and narrowband frequency hopping waveforms. The proposed SDR-based system provides a cost-effective solution for military waveform monitoring that can be used for real-time monitoring and analysis of the electromagnetic spectrum.

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Rico, Rogelio Jaimes, and Saul Lazcano Salas. "SDR y GNU Radio como plataforma para un laboratorio de comunicaciones digitales." RECIBE, REVISTA ELECTRÓNICA DE COMPUTACIÓN, INFORMÁTICA, BIOMÉDICA Y ELECTRÓNICA 8, no. 2 (October 29, 2019): C3–1—C3–13. http://dx.doi.org/10.32870/recibe.v8i2.136.

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SDR (Software Defined Radio) o radio definido por software es una tecnología flexible compuesta por una parte hardware (radio frecuencia) y otra parte basada en software (procesado en banda base). El presente trabajo tiene como fin el análisis de SDR como base para la implementación de un laboratorio de comunicaciones digitales en licenciaturas vinculadas a las telecomunicaciones, tales como Ingeniería en Computación o Ingeniería en Sistemas y Comunicaciones. Para ello, se analizan algunos temas básicos como muestreo, filtrado, modulación y la factibilidad de implementación de los mismos en un esquema SDR, mediante un radio modelo HackRf One en un entorno de GNU Radio.

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Stamou, Adamantia, Grigorios Kakkavas, Konstantinos Tsitseklis, Vasileios Karyotis, and Symeon Papavassiliou. "Autonomic Network Management and Cross-Layer Optimization in Software Defined Radio Environments." Future Internet 11, no. 2 (February 3, 2019): 37. http://dx.doi.org/10.3390/fi11020037.

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The demand for Autonomic Network Management (ANM) and optimization is as intense as ever, even though significant research has been devoted towards this direction. This paper addresses such need in Software Defined (SDR) based Cognitive Radio Networks (CRNs). We propose a new framework for ANM and network reconfiguration combining Software Defined Networks (SDN) with SDR via Network Function Virtualization (NFV) enabled Virtual Utility Functions (VUFs). This is the first approach combining ANM with SDR and SDN via NFV, demonstrating how these state-of-the-art technologies can be effectively combined to achieve reconfiguration flexibility, improved performance and efficient use of available resources. In order to show the feasibility of the proposed framework, we implemented its main functionalities in a cross-layer resource allocation mechanism for CRNs over real SDR testbeds provided by the Orchestration and Reconfiguration Control Architecture (ORCA) EU project. We demonstrate the efficacy of our framework, and based on the obtained results, we identify aspects that can be further investigated for improving the applicability and increasing performance of our broader framework.

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Ivanov, Andrey, Igor Ognev, Elizaveta Nikitina, and Lev Merkulov. "Application of SDR (Software Defined Radio) technology for recovery of signals of side electromagnetic radiation of video tract." Digital technology security, no. 4 (December 27, 2021): 72–90. http://dx.doi.org/10.17212/2782-2230-2021-4-72-90.

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This article presents the results of recovering signals of spurious electromagnetic radiation of a video path using an SDR receiver. This work demonstrates the existence of a potential risk of leakage of confidential information through a technical channel of information leakage due to spurious electromagnetic radiation of a video path, bypassing traditional cryptographic and physical methods of information protection. An attack can be carried out by an attacker without special technical knowledge and special professional expensive equipment. The presented stand makes it possible to simplify research related to spurious electromagnetic radiation, as well as to apply this technology to build a learning process in this domain. In the course of the work, a description of the concept of a technical channel of information leakage and a brief description of the side electromagnetic radiation of the video path are given. The following briefly describes the SDR technology, the selected USRP B210 receiver, and the cross-platform open source GNU Radio software package. The demonstration stand is described in detail and the results of image reconstruction are given. In addition, two stages of the development of a demonstration stand are considered: using a simulation signal and a real intercepted signal. A demonstration stand with simulation signals serves to develop a user's understanding of the properties of spurious electromagnetic radiation, as well as possible obstacles to converting an intercepted signal into an image. The studies of the real intercepted signal were carried out on a monitor with a set resolution of 1280×1024 and a screen refresh rate of 60 Hz. An analog VGA (Video Graphics Array) interface was used to connect the monitor. The dependence of the quality of the reconstructed image on the set sampling frequency of the SDR receiver is shown.

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Samijayani, Octarina Nur, Suci Rahmatia, Vita Nur Septiyani, and Ibrahim Ibrahim. "Perancangan Software Defined Radar Untuk Radar Pulsa dan Radar FMCW." JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI 3, no. 3 (December 20, 2017): 144. http://dx.doi.org/10.36722/sst.v3i3.220.

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Abstrak - Software Defined Radio (SDR) merupakan sistem komunikasi radio berbasis software yang saat ini mulai banyak diimplementasikan dan menunjukkan potensi yang besar. Tingginya efisiensi dalam hal biaya dibandingkan dengan sistem konvensional berbasis perangkat menjadi motivasi bagi berkembangnya konsep ini diberbagai aplikasi. Salah satu aplikasi yang dapat diterapkan menggunakan konsep SDR adalah sistem komunikasi Radar, Software Defined Radar (SDRadar). Radar berbasis software diharapkan dapat menurunkan biaya pembuatan hardware, serta dapat mendukung perancangan Radar yang dapat melakukan banyak fungsi dan lebih flexible untuk melakukan konfigurasi ulang. Radar multifungsi dapat dibangun dengan berbasis software yakni mulai dari pengaturan jenis sinyal, frekuensi operasi, hingga pada tahap pemrosesan sinyal radar. Penelitian ini merancang FMCW Radar menggunakan platform SDR. Simulasi dilakukan dengan mencoba posisi objek yang berbeda, dengan nilai SNR yang berbeda. Hasil simulasi menunjukkan implementasi konsep SDR untuk Radar dapat mendukung fleksibilitas rekonfigurasi parameter Radar. Untuk spesifik radar yang disimulasikan diperoleh bahwa SNR yang baik untuk dapat mendeteksi jarak object dengan baik (error <11%) ialah diatas 20dB. Radar dengan SNR dibawah 20 dB tidak dapat mendeteksi jarak objek dengan baik, dimana error melebihi 50%. Radar Pulsa disimulasikan menggunakan pernagkat USRP dengan factor pengkoreksi/kalibrasi 1.376, sedangkan untuk Radar FMCW masih terdapat error sebsar 70.8%. Kata Kunci : SDR, SDRadar, FMCW Radar Absract - Software Defined Radio (SDR) is a software-based radio communication system that is currently implemented and show great potential to be developed. The efficiency in terms of cost as compared to conventional systems which based on devices is a motivation for the development of this concept in various applications. One of the applications that can be implemented utilizing the concept of SDR is Software Defined Radar (SDRadar). Radar with software based is expected to have lower cost and support the feasibility of Radar to perform in many functions and more flexible to be reconfigured. This research implement the FMCW Radar using SDR platform. Simulations carried out by trying different object positions, with different SNR values. The simulation results show the implementation concept of SDR's Radar can support the flexibility of Radar parameter reconfiguration. For specific simulated radar shows that a suitable SNR value to detect the distance of object (error <11%) is above 20dB. Radar with SNR under 20 dB could not detect the distance of objects well, where the error exceeds 50%. Radar Pulse also simulated using USRP with factor correction or calibration factor of 1,376, while for FMCW with USRP still obtain high error of about 70.8%. Keywords: SDR, SDRadar, FMCW Radar.

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P., Sowjanya, and Satyanarayana P. "Implementation of Transceiver module for SDR system using ADALM PLUTO platform." International Journal of Engineering & Technology 7, no. 4.6 (September 25, 2018): 279. http://dx.doi.org/10.14419/ijet.v7i4.6.20490.

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Software Defined Radio (SDR) provides a comprehensive radio communication platform, based on which new technology can be used through software update. This leads to a large-scale reduction in expansion costs and enables the product to maintain technology development. The SDR platform can be set up with an open, standard, and programmable hardware platform, based on which the functions of the radio can be perceived by adding appropriate software modules. In this platform, the transformation and expansion of the radio functions are done in a software version without the need for a modification of the equipment. Such software radio station can easily communicate with the current or upcoming radio stations. In this article, we analyze SDR evolution and various platforms and implement various modulation techniques with the aim of successfully transferring a message wirelessly over-the-air using ADALM-PLUTO SDR platform by Analog Devices.

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KHOUANE, Boulanouar, Nasreddine BELBEKRI, and J. Eddine BENMANSOUR. "An Overview of Software-Defined Radio Technology in CubeSat Communications." Algerian Journal of Signals and Systems 8, no. 2 (December 31, 2023): 55–58. http://dx.doi.org/10.51485/ajss.v8i2.189.

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Small satellites are becoming more popular because they are cost-effective, easy to assemble, and use commercially available parts. However, traditional ground stations that communicate with small satellites require a lot of hardware and are expensive to build. This makes it challenging to get the most out of small satellites' information. Software Defined Radios (SDRs) have been developed to reduce the cost of these ground stations by doing many of the tasks in software. Many universities and organizations are developing SDR ground stations to communicate with satellites in different orbits. Communication with satellites is critical to their development and operation. This paper proposes a ground station that uses SDR technology to communicate with one or more small satellites in Low Earth Orbit (LEO). The station is cost-effective, portable, and easily scaled, allowing it to acquire data from satellites.

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Bargarai, Faiq A. Mohammed, Adnan Mohsin Abdulazeez, Volkan Müjdat Tiryaki, and Diyar Qader Zeebaree. "Management of Wireless Communication Systems Using Artificial Intelligence-Based Software Defined Radio." International Journal of Interactive Mobile Technologies (iJIM) 14, no. 13 (August 14, 2020): 107. http://dx.doi.org/10.3991/ijim.v14i13.14211.

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The wireless communication system was investigated by novel methods, which produce an optimized data link, especially the software-based methods. Software-Defined Radio (SDR) is a common method for developing and implementing wireless communication protocols. In this paper, SDR and artificial intelligence (AI) are used to design a self-management communication system with variable node locations. Three affected parameters for the wireless signal are considered: channel frequency, bandwidth, and modulation type. On one hand, SDR collects and analyzes the signal components while on the other hand, AI processes the situation in real-time sequence after detecting unwanted data during the monitoring stage. The decision was integrated into the system by AI with respect to the instantaneous data read then passed to the communication nodes to take its correct location. The connectivity ratio and coverage area are optimized nearly double by the proposed method, which means the variable node location, according to the peak time, increases the attached subscriber by a while ratio

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Yang, Jing Jing, Ming Huang, Jiang Yu, Lin Li, and Ling Li. "USRP: A Flexible Platform for Spectrum Monitoring." Applied Mechanics and Materials 610 (August 2014): 233–40. http://dx.doi.org/10.4028/www.scientific.net/amm.610.233.

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Software-defined radio (SDR) is a kind of radio communication system which attempts to place much or most of the complex signal handling involved in receivers and transmitters into the digital style. As wireless technologies become ubiquitous, SDR are gaining popularity. In this work, we introduce the SDR platform USRP with emphasizes on hardware components, signal processing procedure and the supporting software. A radio spectrum monitoring system based on USRP and LabVIEW is designed and implemented, and web publishing of the real time spectrum is realized.

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Carlos Martínez Quintero, Juan, Edith Paola Estupiñán Cuesta, and Johan Stiven García Ramírez. "Reconfigurable software-defined radar testbed with built-in validation." Bulletin of Electrical Engineering and Informatics 11, no. 2 (April 1, 2022): 825–37. http://dx.doi.org/10.11591/eei.v11i2.3568.

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This article presents a radar testbed for speed detection through micro-doppler effect in a controlled environment using software defined radio (SDR) technology. The target moves along a conveyor belt with software-controlled speed. The speed is detected by an SDR radar, and it is possible to compare it to an encoder-based sensor implemented on the testbed. The testbed as well as the SDR radar are reconfigurable and a (continuous wave) CW radar was implemented for the validation of the testbed; however, the testbed is not limited to this implementation. The testbed can be remotely operated because it includes the mechanism to move the target and control its velocity. The article shows the way in which the testbed was designed and implemented, the generation and processing of the radar signal using a limeSDR, and the validation of the radar measurements compared to the encoder-based speed sensor. The maximum speed obtained by the target in the testbed is 15.69cm/s. Results show a difference in the speed measured with the SDRadar of no more than 5% compared to the sensor measurememt. Results obtained allow characterizing the behavior of the SDR platform in the detection of low speeds.

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Marinho, Diogo, Raul Arruela, Tiago Varum, and João N. Matos. "Software-Defined Radio Beamforming System for 5G/Radar Applications." Applied Sciences 10, no. 20 (October 15, 2020): 7187. http://dx.doi.org/10.3390/app10207187.

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Based on the flexibility of software-defined radio (SDR) techniques applied to an array of antennas, this article presents a beamforming architecture designed to operate in millimeter-wave bands (28 GHz), with possible applications in radar and 5G systems. The system structure, including its main constituents such as the radio frequency (RF) frontend modules, the radiating elements as well as the baseband processing on the host computer are widely described. Beamforming is achieved by digitally controlling the signals that feed the antennas. The experimental measurements performed in an anechoic chamber validate the proposed approach.

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Heyne, B., and J. Götze. "Cordic based algorithms for software defined radio (SDR) baseband processing." Advances in Radio Science 4 (September 4, 2006): 179–84. http://dx.doi.org/10.5194/ars-4-179-2006.

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Abstract. This paper presents two Cordic based algorithms which may be used for digital baseband processing in OFDM and/or CDMA based communication systems. The first one is a linear least squares based multiuser detector for CDMA incorporating descrambling and despreading. The second algorithm is a pure Cordic based FFT implementation. Both algorithms can be implemented using solely Cordic based architectures (e.g. coprocessors or ASIPs). The algorithms exactly fit the needs of a multistandard terminal as they both are freely parameterizable. This regards to the accuracy of the results as well as to the parameters of the performed function (e.g. size of the FFT).

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Naik, Amit, and K. Krishna Naik. "Data Processing in Software Defined Radio (SDR) based Multiband Transceiver." International Journal of Computer Applications 183, no. 12 (June 30, 2021): 34–36. http://dx.doi.org/10.5120/ijca2021921431.

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Yang, Taeyoung, William A. Davis, Warren L. Stutzman, S. M. Shajedul Hasan, Randall Nealy, Carl B. Dietrich, and Jeff H. Reed. "Antenna design strategy and demonstration for software-defined radio (SDR)." Analog Integrated Circuits and Signal Processing 69, no. 2-3 (September 15, 2011): 161–71. http://dx.doi.org/10.1007/s10470-011-9775-6.

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Șorecău, Mirela, Emil Șorecău, Annamaria Sârbu, and Paul Bechet. "Real-Time Statistical Measurement of Wideband Signals Based on Software Defined Radio Technology." Electronics 12, no. 13 (July 3, 2023): 2920. http://dx.doi.org/10.3390/electronics12132920.

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The increase in channel bandwidth and peak-to-average power ratio (PAPR) of modern communication standards poses a serious challenge to performing channel power (CP) and complementary cumulative distribution function (CCDF) measurements in real-time using standard measurement solutions based on spectrum analyzers (SA). Recently, Software Defined Radio (SDR) technology has become a viable alternative to the conventional real-time spectrum monitoring approach based on SA due to its reduced cost. Therefore, in this paper, we propose a novel, innovative, agile and cost-effective solution to enable both CP and CCDF measurements on a state-of-the-art SDR platform. The proposed solution exploits the ability of the SDR equipment to access signal samples in the time domain and defines both CP and CCDF-type measurements. The two measurement functions are software implemented in GNU Radio by designing customized blocks and integrated into a graphical user interface. The proposed system was first tested and parameterized in a controlled environment using emitted signals specific to the IEEE 802.11ax family of wireless local area networks. After parameterization, the SDR-based system was used for over-the-air measurements of signals emitted in the 4G+, 5G and 802.11ax communication standards. By performing the measurement campaign, we have demonstrated the capabilities of the measurement system in performing real-time measurements on broadband channels (up to 160 MHz for IEEE 802.11ax). Altogether, we have proved the usability of CP and CCDF measurement functions in providing valuable insights into the power distribution characteristics of signals emitted by the latest communication standards. By exploiting the versatility of SDR technology, we have enabled a cost-effective solution for advanced real-time statistical measurements of modern broadband signals.

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Budroweit, Mueller, Jaksch, Alía, Coronetti, and Koelpin. "In-Situ Testing of a Multi-Band Software-Defined Radio Platform in a Mixed-Field Irradiation Environment." Aerospace 6, no. 10 (September 24, 2019): 106. http://dx.doi.org/10.3390/aerospace6100106.

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This paper presents an in-situ test concept for a multi-band software-defined radio (SDR) platform in a mixed-field radiation environment. Special focus is given to the complex automated test setup with respect to the requirements of the irradiation facility. Additionally, selected test results of a system-level evaluation are presented and discussed. For the verification of the mixed-field radiation environment, the software-defined radio (SDR) was also tested under proton irradiation. The cross-sections for the observed single event effects are compared and show similar results.

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B, Bini, Ramgopal Segu, and Mahesh Kumar N. "Implementation of Cognitive Radio using SDR and GNU Concepts." Journal of VLSI Design and Signal Processing 8, no. 2 (April 27, 2022): 1–7. http://dx.doi.org/10.46610/jovdsp.2022.v08i02.001.

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The increased use of wireless transmission has increased the demand for wireless radio spectrum, which can be used for a variety of social and individual benefits. As a result, radio spectrum allocation and utilization are also critical tasks. Cognitive Radio (CR) is a cutting-edge technology that claims to overcome this problem by allowing unlicensed users to access the radio spectrum without interfering with licensed users.Cognitive radio is a new technique that uses an intelligent Software Defined Radio (SDR) mechanism to assist manage the impending spectrum issue through dynamic spectrum allocation and accommodate growing data traffic. With the use of software defined protocols, SDR avoids frequent changes to the hardware structure.The key innovation of this study is the practical implementation of CR on GNU radio for real-time transmission as a primary user utilizing an energy-based spectrum sensing approach. The goal of this project is to develop a spectrum sensing approach that is best suited for detecting white spaces during SDR transmission.

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Iancu, Daniel, John Glossner, Gary Nacer, Stuart Stanley, Vitaly Kolashnikov, and Joe Hoane. "Software defined radio platform with wideband tunable front end." International Journal of Engineering & Technology 4, no. 1 (January 11, 2015): 97. http://dx.doi.org/10.14419/ijet.v4i1.4160.

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The paper presents a Software Defined Radio (SDR) development platform with wideband tunable RF (Radio Frequency) front end. The platform is based on the SB3500 Multicore Multithreaded Vector Processor and it is intended to be used for a wide variety of communication protocols as: Time Division Duplexing/Frequency Division Duplexing Long Term Evolution (TDD/FDD LTE), Global Positioning System (GPS), Global System for Mobile/General Packet Radio Service (GSM/GPRS), Wireless Local Area Network (WLAN), Legacy Worldwide Interoperability for Microwave Access (WiMAX). As an example, we describe briefly the implementation of the LTE TDD/FDD communication protocol. As far as we know, this is the only LTE category 1 communication protocol entirely developed and executed in software (SW), without any hardware (HW) accelerators.

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Silva Cabral, Yngrid Keila, Paulo Ribeiro Lins Júnior, and Jerônimo Silva Rocha. "Proposta de arcabouço experimental para rede de sensoriamento espectral usando rádio definido por software." Revista Principia - Divulgação Científica e Tecnológica do IFPB 1, no. 44 (April 2, 2019): 88. http://dx.doi.org/10.18265/1517-03062015v1n44p88-99.

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This paper presents an architecture proposal for a spectrum sensing network using software defined radios. The radios responsible for the sensing are implemented with SDR-RTL, a low-cost radio, capable of receiving signals from several frequency bands, such as those used in FM, DAB and DVB-T. Sensing functions are implemented using GNU Radio, the most commonly used free software for configuring software-defined radios installed in Raspberry Pi’s, which makes the sensing structure significantly compact and inexpensive when compared to other solutions. Experiments are performed to measure the probability of detection in relation to the signal noiseratio, as a metric of the efficiency of the system proposed in this work

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Pérez-Riaño, Daniel Ricardo, Elkin Andrés Ducuara-Hernández, and Luis Fernando Pedraza-Martínez. "Development of a GFDM waveform with radio defined with software." Visión electrónica 1, no. 2 (August 13, 2018): 282–92. http://dx.doi.org/10.14483/22484728.18392.

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In this paper the performance of a Generalized Frequency Division Multiplexing waveform is evaluated when compared to an Orthogonal Frequency Division Multiplexing signal. For the development of the previous waveforms, the GNU radio software and the Software Defined Radio (SDR) equipment USRP N210 are used. Through a spectrum analyzer the power of both waveforms are measured and the Out-of-Band Radiation is analyzed. Then, the results obtained are compared and the advantages and disadvantages of the implementation of GFDM as a waveform within the fifth generation systems are exposed.

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Geng, Yong, Si Long Wu, and Fang Kun Jia. "The Research of Chirp Signal Based on GNU Radio and USRP." Applied Mechanics and Materials 336-338 (July 2013): 1765–70. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.1765.

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This paper put forward a research of the chirp signal and its generated method. The research was based on a software-defined radio (SDR) system, which was composed of GNU Radio and Universal Software Radio Peripheral (USRP). It introduced the chirp signal and design algorithm to show how to generate the chirp signal based on DDS technique. And it provided two platforms including the FPGA platform and SDR platform to generate the chirp waveforms. Finally, it analyzed the difference between the two platforms. From the waveforms using these two platforms displayed in oscilloscope, it found that the results based on SDR were better. And it demonstrated that advantages of GNU Radio and USRP.

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Journal articles on the topic 'Software Defined Radio (SDR)'

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