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Journal articles on the topic 'The USRP'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Ren, Shuai, Yun Fei Zhang, Feng Xue, et al. "Enhanced Surface Mechanical Properties of Cr12MoV Using Ultrasonic Surface Rolling Process and Deep Cryogenic Treatment." Solid State Phenomena 279 (August 2018): 143–47. http://dx.doi.org/10.4028/www.scientific.net/ssp.279.143.

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Ultrasonic surface rolling process (USRP) combined with deep cryogenic treatment (USRP+DCT) was applied on quenched and tempered Cr12MoV. The results indicated that USRP and USRP+DCT could significantly improve the surface mechanical properties, leading to smaller surface roughness and smoother morphology with less cracks and defects. Test of microhardness showed that the hardness increase of USRP and USRP+DCT were 16.4% and 23.6%, respectively. In addition, the wear resistance was improved by USRP and USRP+DCT. Compared with USRP, USRP+DCT can further improve the surface mechanical properties

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2

Szlachetko, Bogusław, and Andrzej Lewandowski. "A Multichannel Receiver of the Experimental FM Based Passive Radar Using Software Defined Radio Technology." International Journal of Electronics and Telecommunications 58, no. 4 (2012): 301–6. http://dx.doi.org/10.2478/v10177-012-0041-3.

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Abstract In this paper we present results of research on multichannel receiver using Software Defined Radio technology. This receiver is a part of the experimental FM based passive radar being designed. The hardware platform of the receiver consists of the Universal Software Defined Radio Peripheral devices. In the paper we propose modifications of the USRP’s FPGA configuration and GNU Radio code. These modifications allow for developing six/nine synchronous input channel receiver based on two/tree USRPs respectively. Issues of synchronization of separate USRP devices by assuring synchronous s

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3

Sheybani, Ehsan, and Giti Javidi. "Integrating Software Defined Radio with USRP." International Journal of Interdisciplinary Telecommunications and Networking 9, no. 3 (2017): 1–9. http://dx.doi.org/10.4018/ijitn.2017070101.

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The USRP1 is the original Universal Software Radio Peripheral hardware (USRP) that provides entry-level RF processing capability. Its primary purpose is to provide flexible software defined radio development capability at a low price. You can control the frequency you receive and transmit by installing different daughter-boards. The authors' USRP model had been configured to receive a signal from local radio stations in the DC, Maryland metropolitan area with the BasicRX model daughterboard. The programmable USRP was running python block code implemented in the GNU Radio Companion (GRC) on Ubu

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4

John, Merbin, Alessandro M. Ralls, Scott C. Dooley, et al. "Ultrasonic Surface Rolling Process: Properties, Characterization, and Applications." Applied Sciences 11, no. 22 (2021): 10986. http://dx.doi.org/10.3390/app112210986.

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Ultrasonic surface rolling process (USRP) is a novel surface severe plastic deformation (SPD) method that integrates ultrasonic impact peening (UIP) and deep rolling (DR) to enhance the surface integrity and surface mechanical properties of engineering materials. USRP can induce gradient nanostructured surface (GNS) layers on the substrate, providing superior mechanical properties, thus preventing premature material failure. Herein, a comprehensive overview of current-state-of-the art USRP is provided. More specifically, the effect of the USRP on a broad range of materials exclusively used for

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5

Xu, Xingchen, Daoxin Liu, Xiaohua Zhang, Chengsong Liu, Dan Liu, and Amin Ma. "Effects of Ultrasonic Surface Rolling on the Localized Corrosion Behavior of 7B50-T7751 Aluminum Alloy." Materials 13, no. 3 (2020): 738. http://dx.doi.org/10.3390/ma13030738.

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The effects of an ultrasonic surface rolling process (USRP) on the localized corrosion behavior of 7B50-T7751 aluminum alloy in a sodium chloride + hydrogen peroxide solution were investigated through microstructural observation, immersion testing, and electrochemical measurements. The results revealed that this alloy is prone to pitting. However, the localized corrosion resistance can be significantly improved via both one-pass USRP and 12-pass USRP treatment. Furthermore, in the test solution, the thickness and the acceptor density of the passivation film were affected by the USRP treatment.

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6

Liu, Dan, Yinglin Ke, Hongsheng Huang, Changsheng Tan, Qiang Xu, and Huanbin Li. "Improvement of Surface Properties of 30CrNi2MoVA Steel with Ultrasonic Composite Strengthening Modification." Coatings 15, no. 2 (2025): 183. https://doi.org/10.3390/coatings15020183.

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The surface roughness, surface hardness, tensile properties and friction-wear properties were characterized, in comparison with those of the traditional turned cutting, electropulsing treatment (EP) and ultrasonic surface-rolling process (USRP) sample. The surface microstructure was obviously refined after USRP and EP-USRP, with a fine-grain depth of 60 μm and 100 μm, respectively. The surface roughness significantly decreases at first, and then gradually increases after surface-strengthening modification. The lowest roughness of 0.035 μm and 0.040 μm is obtained for the USRP and EP-USRP sampl

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7

Javidi, Giti, and Ehsan Sheybani. "Application of Digital Signal Processing in USRP Satellite Signal Detection." International Journal of Interdisciplinary Telecommunications and Networking 9, no. 2 (2017): 16–25. http://dx.doi.org/10.4018/ijitn.2017040102.

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The Universal Software Radio Peripheral development technique is designing and implementing radio frequency based systems. The distinctiveness originates from the interchangeable daughterboard within the USRP. The system is designed around the Xilinx Vertex 3 FPGA chip. This means C++, Python, and VHDL can be used to program this device. The project consists of creating a receiver. The objective of the project is to research and comprehend the hardware functionalities of the USRP. The purpose is to create codes in C++ and Python to implement receiving capabilities of the device. The goal of th

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8

Zha, Xuming, Zhi Yuan, Hao Qin, et al. "Investigating the Dynamic Mechanical Properties and Strengthening Mechanisms of Ti-6Al-4V Alloy by Using the Ultrasonic Surface Rolling Process." Materials 17, no. 6 (2024): 1382. http://dx.doi.org/10.3390/ma17061382.

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The demand for titanium alloy has been increasing in various industries, including aerospace, marine, and biomedical fields, as they fulfilled the need for lightweight, high-strength, and corrosion-resistant material for modern manufacturing. However, titanium alloy has relatively low hardness, poor wear performance, and fatigue properties, which limits its popularization and application. These disadvantages could be efficiently overcome by surface strengthening technology, such as the ultrasonic surface rolling process (USRP). In this study, the true thermo-mechanical deformation behavior of

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9

Zhao, Xiaohui, Kaichao Liu, Desheng Xu, Yu Liu, and Chunhua Hu. "Effects of Ultrasonic Surface Rolling Processing and Subsequent Recovery Treatment on the Wear Resistance of AZ91D Mg Alloy." Materials 13, no. 24 (2020): 5705. http://dx.doi.org/10.3390/ma13245705.

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AZ91D Mg alloy was treated by ultrasonic surface rolling processing (USRP) and subsequent recovery treatment at different temperatures. The dry sliding friction test was performed to investigate the effects of USRP and subsequent recovery treatment on the wear resistance of AZ91D Mg alloy by a ball-on-plate tribometer. The microstructure, properties of plastic deformation layer and worn morphology were observed by optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) analysis and microhardness tester. Results illustrate tha

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10

Sun, Ren, Hu, and Li. "Effect of Ultrasonic Surface Rolling Process on the Hot Compression Behavior of Inconel 718 Superalloy at 700 °C." Nanomaterials 9, no. 4 (2019): 658. http://dx.doi.org/10.3390/nano9040658.

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A series of hot compression tests at the temperature of 700 °C were applied to study the effect of the ultrasonic surface rolling process (USRP) on the hot compression behavior of Inconel 718 superalloy. The results indicated that the USRP-treated samples exhibited a better ability to withstand axial hot compression than the untreated samples. After the hot compression process, the size of the matrix grains was slightly decreased, and the volume fraction of ultra-fine recrystallized grains in the near-surface regions was increased for the USRP-treated samples. In addition, for USRP-treated sam

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11

Hao, Jingbin, Qingwei Niu, Haowen Ji, and Hao Liu. "Effect of Ultrasonic Rolling on the Organization and Properties of a High-Speed Laser Cladding IN 718 Superalloy Coating." Crystals 13, no. 8 (2023): 1214. http://dx.doi.org/10.3390/cryst13081214.

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To repair or improve the performance of H13 hot working molds through the additive manufacturing process, IN 718 was coated on H13 die steel by high-speed laser cladding followed by an ultrasonic surface rolling process (USRP). The mechanism of ultrasonic surface rolling on the mechanical properties of the coating was studied. After USRP, the coating exhibited severe plastic deformation; the microscopic organization of the surface layer was refined and the particle size was significantly reduced. The violent plastic deformation of the coating caused by USRP improved the dislocation density and

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12

G, Durga Priyadharshini, and Suchitra G. "PERFORMANCE ANALYSIS OF REED-SOLOMON CODES IN DIGITAL COMMUNICATION SYSTEM USING LABVIEW." ICTACT Journal on Communication Technology 11, no. 1 (2020): 2121–25. https://doi.org/10.21917/ijct.2020.0313.

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5G uses various types of access networks and has a high frequency spectrum. At present, there are no mobile handsets that support all spectrum ranges due to limitations of hardware and the expenses involved in the process. This challenge can be addressed with the help of Software Defined Radio (SDR). Universal Software Radio Peripheral (USRP) is a range of software-defined radios and most USRPs connect to a host computer through a high-speed link, which the host-based software uses to control the USRP hardware and transmit/receive data. In general, error occurs during data transmission through

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13

Wu, Xiaobin, Jun Cheng, Zhilong Xu, et al. "Exploration of Key Process Parameters and Properties of 40Cr Steel in Ultrasonic Surface Rolling Process." Coatings 12, no. 9 (2022): 1353. http://dx.doi.org/10.3390/coatings12091353.

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Ultrasonic surface rolling (USRP) is an effective process to improve a workpiece’s fatigue property, in which ultrasonic vibration and static force are applied on the workpiece’s surface. In order to clarify the ultrasonic rolling strengthening mechanism of critical components and optimize the USRP parameters, a theoretical model of ultrasonic rolling was established. Based on the stress-strain curve of 40Cr steel, the USRP parameters were formulated. The compressive residual stress field of single point impact was analyzed by finite element simulation, and the simulation results were validate

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14

Wang, Haojie, and Xiaoqiang Wang. "Experimental study on surface roughness processed by ultrasonic surface rolling process." Journal of Physics: Conference Series 2760, no. 1 (2024): 012085. http://dx.doi.org/10.1088/1742-6596/2760/1/012085.

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Abstract In order to explore the formation principle of microscopic morphology of the lower surface of USRP, USRP theoretical analysis and processing experiments are carried out. Firstly, the spatial motion trajectory of tool head by USRP is established to reveal formation principle of surface morphology. Additionally, this experiment employs a single-factor experimental design method. The influence law of process parameters and surface roughness is obtained. The results show that the workpiece speed affects the circumferential machining density of the part, and the feed speed affects the axia

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15

Sui, Rong Juan, Zhen Hua Qin, Lei Yu Sun, Cheng Bin Fang, and Xiao Mei Chen. "Effect of Ultrasonic Surface Rolling Process Parameters on Surface Properties of S30408 Austenitic Stainless Steel." Solid State Phenomena 305 (June 2020): 111–16. http://dx.doi.org/10.4028/www.scientific.net/ssp.305.111.

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S30408 austenitic stainless steel was treated by using hawking processing which is a type of ultrasonic surface rolling process (USRP). The effects of USRP parameters on surface roughness, surface hardness and corrosion resistance were investigated. Compared with the untreated specimen, the surface roughness and surface hardness is decreased by 87%, the surface hardness is increased by 51% and the corrosion rate reduces after USRP. The surface roughness decreases obviously as the step-size decreases, while the step-size has little effect on the surface hardness and corrosion resistance.

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16

Somanaidu, Utlapalli, Nagarjuna Telagam, Nehru Kandasamy, and Menakadevi Nanjundan. "USRP 2901 Based FM Transceiver with Large File Capabilities in Virtual and Remote Laboratory." International Journal of Online Engineering (iJOE) 14, no. 10 (2018): 193. http://dx.doi.org/10.3991/ijoe.v14i10.8283.

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The radio signal processing capability can be provided by Universal software radio peripheral (USRP) hardware. The received signal frequency can be controlled and transmitting the signal through wireless is possible by installing NI USRP utility configuration. The programmable USRP was running VI snippet program in block diagram panel with radio companion integrated through USB cable on windows 7 64 bit OS. With the parameters such as IQ rate, transmitter gain, carrier frequency along with device name which is given as ni2901_1 the students can able to tune the radio signal. In addition to thi

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17

Wang, Zhiyuan, Yangfei Huang, Zhiguo Xing, et al. "Bending Fatigue Behaviour and Fatigue Endurance Limit Prediction of 20Cr2Ni4A Gear Steel after the Ultrasonic Surface Rolling Process." Materials 14, no. 10 (2021): 2516. http://dx.doi.org/10.3390/ma14102516.

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To study the effect of the surface properties on the bending fatigue performance of heavy-duty gear steel, the authors of this paper used the ultrasonic surface rolling process (USRP) to strengthen 20Cr2Ni4A carburized gear steel. USRP is a novel technique in which the ultrasonic technology is incorporated into the concept of conventional deep rolling. In this study, we illustrated how the surface properties and cross-section mechanical property influence the three-point bending fatigue life of the samples before and after USRP treatment. At the same time, the predicted failure probability-str

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18

Sheybani, Ehsan, and Giti Javidi. "Application of Signal Processing in GPS Signal Detection Using USRP." International Journal of Interdisciplinary Telecommunications and Networking 9, no. 2 (2017): 26–36. http://dx.doi.org/10.4018/ijitn.2017040103.

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The Universal Software Radio Peripheral (USRP) is slowly becoming a very popular piece of hardware used in different universities and research labs across the world. It is inexpensive, which attracts a lot of attention, along with its variety of applications and capabilities. The USRP connects to a host-computer through a high-speed USB or Gigabit Ethernet interface. Another reason for the increasing popularity of the USRP is its ability to respond to multiple programming software such as GNU Radio, Matlab/Simulink, and LabView. There is a broad range of capabilities of the USRP one of which i

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19

Utami, Alifia Fitri, Iswandi Iswandi, and I. Wayan Mustika. "Random Time Delay Mitigation in Pulse Radar Systems Implementation using Universal Software Radio Peripheral (USRP) and GNU Radio Companion (GRC)." IJITEE (International Journal of Information Technology and Electrical Engineering) 2, no. 3 (2019): 85. http://dx.doi.org/10.22146/ijitee.42873.

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Abstract— Radar or radio detection and ranging has a basic function to detect and measure a target range. One of the latest developments is Software Defined Radio (SDR)-based radar. An example of SDR implementation is by using Universal Software Radio Peripheral (USRP) as hardware and GNU Radio Companion (GRC) as software. The simplest radar type is pulse radar in which system timing is crucial. Meanwhile, in pulse radar system implementation using USRP and GRC, there is an issue with the random processing time delay between communication protocol of USRP and computer running the GRC, which ca

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20

Wang, Xiaodi, Liqin Chen, Peng Liu, Guobiao Lin, and Xuechong Ren. "Enhancement of Fatigue Endurance Limit through Ultrasonic Surface Rolling Processing in EA4T Axle Steel." Metals 10, no. 6 (2020): 830. http://dx.doi.org/10.3390/met10060830.

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Fatigue property is a key evaluation index for the service reliability of railway axle. In this work, the effect of ultrasonic surface rolling processing (USRP) on the surface characteristic and fatigue property was investigated in an EA4T axle steel used on high speed trains by several characterization techniques and the staircase method fatigue testing. The surface characteristics were initially studied in EA4T axle steel under different static loads of 1.0 kN, 1.5 kN and 2.0 kN, and served as the important USRP parameter. It was found that the larger static load greatly improved the surface

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Telagam, Nagarjuna, Padma Charan Sahu, Sunita Panda, and Nehru Kandasamy. "USRP Based Digital Audio Broadcasting Using OFDM in Virtual and Remote Laboratory." International Journal of Online and Biomedical Engineering (iJOE) 15, no. 13 (2019): 77. http://dx.doi.org/10.3991/ijoe.v15i13.8761.

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Digital Audio Broadcasting (DAB) is an amazing technology, achieving its promise of certainly delivering high quality digital audio in the most vindicate mobile and fixed receiver environments. The radio signal processing capability can be provided by Universal software radio peripheral (USRP) hardware. The received signal frequency can be controlled and transmitting the signal through wireless is possible by installing NI USRP utility configuration. The programmable USRP was running the VI snippet program in block diagram panel with radio companion integrated through USB cable on windows 7 64

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22

Guan, Bo, Xiao Li, Jing Xu, et al. "Mechanical and Corrosion Behavior of a Composite Gradient-Structured Cu-Fe Alloy." Metals 13, no. 7 (2023): 1304. http://dx.doi.org/10.3390/met13071304.

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Immiscible Cu-Fe alloys exhibit poor corrosion resistance due to different corrosion potentials between the constituent phases, which limits their application. In this paper, a composite gradient-structured Cu-10 wt.%Fe plate was prepared via the ultrasonic surface rolling process (USRP). The microstructure evolution, mechanical properties and corrosion behavior were studied. The results demonstrate that USRP effectively enhances both the strength and corrosion resistance of the Cu-10Fe alloy. The improved strength is related to the combined effects of Hall–Petch strengthening, dislocation str

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She, Dingshun, Shihao Liu, Jiajie Kang, et al. "Abrasive Wear Resistance of Plasma-Nitrided Ti Enhanced by Ultrasonic Surface Rolling Processing Pre-Treatment." Materials 12, no. 19 (2019): 3260. http://dx.doi.org/10.3390/ma12193260.

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The objective of the given work was to investigate abrasive wear behaviours of titanium (Ti) treated by ultrasonic surface rolling processing (USRP) pre-treatment and plasma nitriding (PN). Simulated lunar regolith particles (SLRPs) were employed as abrasive materials during characterization of tribological performances. The experimental results showed that SLRPs cause severe abrasive wear on Ti plasma-nitrided at 750 °C via the mechanism of micro-cutting. Due to the formation of a harder and thicker nitriding layer, the abrasive wear resistance of the Ti plasma-nitrided at 850 °C was enhanced

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24

Tsymbaliuk, V. I., and A. O. Popov. "Dynamics of levodopa-therapy in patients with Parkinson’s disease afterunilateral pallidotomy." Endovascular Neuroradiology 24, no. 2 (2018): 30–36. http://dx.doi.org/10.26683/2304-9359-2018-2(24)-30-36.

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Objective — to investigate the dynamics of levodopa-therapy in patients with Parkinson's disease (PD) after unilateral stereotactic radiofrequency pallidotomy (USRP). Materials and methods. From 2008 to 2016 USRP was performed in 16 patients (7 men and 9 women from 48 to 73 years old, average — 56 years) with PD complicated by levodopa-induced dyskinesias and motor fluctuations (MF). The dynamics of the disease symptoms was interpreted on the basis of separate sections and points of the UPDRS. The levodopa-equivalent dose (LED) was calculated using standard conventers. Patients were eval

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25

Wang, Shuaixing, Tianjian Yu, Zhiwei Pang, Xiaole Yin, and Xiaohui Liu. "Effect of Repeated Processing Passes during Ultrasonic Rolling on Fatigue Performance and Corrosion Resistance of Ti6Al4V Alloy." Metals 13, no. 10 (2023): 1719. http://dx.doi.org/10.3390/met13101719.

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Ultrasonic surface rolling processing (USRP) is a new method to improve the fatigue performance of titanium alloy, and repeated processing pass is an important factor that affects its strengthening effect. The effect of USRP passes on the surface microstructure, residual stress, fatigue performance and corrosion resistance of titanium alloy is researched via SEM, X-ray diffractometer, rotating–bending fatigue test and electrochemical impedance spectroscopy. The results show that Ti6Al4V alloy undergoes cumulative plastic deformation during USRP process, the surface grains are refined and a res

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Ao, Ni, Daoxin Liu, and Xiaohua Zhang. "Improving fatigue performance of surface-damaged Ti-6Al-4V alloy via ultrasonic surface rolling process." MATEC Web of Conferences 321 (2020): 09003. http://dx.doi.org/10.1051/matecconf/202032109003.

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Surface damages caused by markings, like laser marking and mechanical marking are detrimental to the fatigue performance of the components. To improve the fatigue performance of laser marked or mechanical marked Ti-6Al-4V alloy, ultrasonic surface rolling process (USRP) was performed on Ti-6Al-4V alloy prior to marking. The results showed that laser marking induced a porous and loose oxidized layer which severely decreased the fatigue performance of the substrate. And the mechanical marking slightly decreased the fatigue performance of the substrate due to the local stress concentration at the

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Mikhaylov, V. Y., A. A. Abramov, R. B. Mazepa, and N. A. Yakush. "Development of models of secretly influence on the wireless networks infrastructure using signal&like interference and evaluation of their resistance to detection." H&ES Research 15, no. 3 (2023): 38–46. http://dx.doi.org/10.36724/2409-5419-2023-15-3-38-46.

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Introduction: The article discusses scenarios in which, according to the 802.11 standard, deauthentication frames should be sent from a user or access point. The developed hardware and software complex records such interaction and then broadcasts it as interference. The object of research is IEEE 802.11 wireless networks, the development of models for the covert effect of signal-like interference using USRP on the physical data transmission medium. The subject of the study is the development of signs of detection of DoS effects by these models of signallike interference. The hardware basis is

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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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Liu, Yu, Li Jun Wang, and Dong Po Wang. "Study on Ultrasonic Surface Rolling Process Using FEM Analysis." Advanced Materials Research 189-193 (February 2011): 2112–15. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2112.

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Ultrasonic surface rolling processing (USRP) is a surface nanocrystallization method developed recently, which can bring metal surface with superior properties. In order to obtain the material response during USRP, a 3D dynamic finite element model was adopted to study the effects of parameters. This model was validated by experimental results of residual stress. Simulated results indicate that large ultrasonic vibration parameters generate high stress and strain, where static pressure plays a more important role than vibration amplitude. Yet high spindle speed leads to small stress and strain

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Zhao, Xiao Hui, and Yu Liu. "Investigation on Dynamics of Ultrasonic Surface Rolling Process." Advanced Materials Research 834-836 (October 2013): 640–43. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.640.

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Ultrasonic surface rolling processing (USRP) is a surface nanocrystallization method developed recently, which can bring metal surface with superior properties. In order to obtain the motion state of the processing tip during USRP, a 3D dynamic finite element model was adopted to simulate the response of processing tip. The model parameters were provided by piezoelectric force sensor test system. Simulated results indicate that the peak value of impact force forms at the time of 25μ̓ and the maximum speed of working tip forms at the time of ̃̀μ̓.

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Toker, Onur, and Ozgur Ozdemir. "A Synthetic Wide-Bandwidth Radar System Using Software Defined Radios." Engineering Proceedings 2, no. 1 (2020): 9. http://dx.doi.org/10.3390/ecsa-7-08174.

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In this paper, we present a synthetic wide-bandwidth radar system using software-defined radios (SDR), and demonstrate the proposed approach using a Universal Software Radio Peripheral (USRP) device. Normally, USRP devices have tens of MHz bandwidth, and cannot generate large bandwidth sweeps to achieve cm-level range resolution. By using a synthetic wide-bandwidth approach, we can generate frequency sweeps up to 5 GHz bandwidth and obtain high-resolution range profiles. We will first summarize the mathematical details of the proposed approach, then present a pure Python-based solution using t

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Zhang, Hao, Xiuli Yang, Xiqiang Ma, Dongliang Jin, and Jinyuan You. "Effect of Ultrasonic Rolling on Surface Properties of GCr15 Spherical Joint Bearing." Lubricants 12, no. 6 (2024): 208. http://dx.doi.org/10.3390/lubricants12060208.

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Ultrasonic surface rolling process (USRP) has the potential to improve the surface mechanical properties of metal components with platelike or cylindrical macrostructure, but its effect on spherical surfaces remains to be studied in depth. In order to investigate the effect of USRP on the surface roughness, hardness and wear resistance of a spherical joint bearing made of GCr15 bearing steel, ultrasonic rolling strengthening was carried out on a spherical bearing surface under various conditions. The surface roughness and hardness variations of samples before and after strengthening were inves

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Soni, Gaurav, and Manish Sharma. "Design and Analysis of Real-Time Applications Based on Software Designed Radio (SDR) Using 2×2 MIMO USRP 2920 and LabVIEW." ECS Transactions 107, no. 1 (2022): 9709–18. http://dx.doi.org/10.1149/10701.9709ecst.

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The utilization of radio spectrum is becoming more necessary in light of recent advancements in wireless technologies. The available spectrum, on the other hand, is very constrained. In other words, Cognitive Radio (CR) is utilized to make the best use of the spectrum that is available. While unlicensed users should use CR technology to validate the spectrum before utilizing it, licensed users should always employ CR technology. Using dual antenna arrays to produce multiple-input multiple-output (MIMO) setups in wireless communication has sparked a great deal of interest in wireless technology

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Wang, Bingying, Yu Yin, Zhiwei Gao, Zhenbo Hou, and Wenchun Jiang. "Influence of the ultrasonic surface rolling process on stress corrosion cracking susceptibility of high strength pipeline steel in neutral pH environment." RSC Advances 7, no. 59 (2017): 36876–85. http://dx.doi.org/10.1039/c7ra05425d.

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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 t

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Chung, Hyeonjin, Hyunwoo Park, and Sunwoo Kim. "Leveraging Deep Learning for Practical DoA Estimation: Experiments with Real Data Collected via USRP." Sensors 22, no. 19 (2022): 7578. http://dx.doi.org/10.3390/s22197578.

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This paper presents an experimental validation of deep learning-based direction-of-arrival (DoA) estimation by using realistic data collected via universal software radio peripheral (USRP). Deep neural network (DNN) and convolutional neural network (CNN) structures are designed to estimate the DoA. Two types of data are used for training networks. One is the data synthesized by the signal model, and the other is the data collected by USRP. Here, the signal model considers both mutual coupling and multipath signals. Experimental results show that the estimation performance is most accurate when

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El Bahi, Fatima Zahra, Hicham Ghennioui, and Mohcine Zouak. "Performance Evaluation of Energy Detector Based Spectrum Sensing for Cognitive Radio using NI USRP-2930." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1934. http://dx.doi.org/10.11591/ijece.v7i4.pp1934-1940.

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This paper presents the performance evaluation of the Energy Detector technique, which is one of the most popular Spectrum Sensing (SS) technique for Cognitive Radio (CR). SS is the ability to detect the presence of a Primary User (PU) (i.e. licensed user) in order to allow a Secondary User (SU) (i.e unlicensed user) to access PU's frequency band using CR, so that the available frequency bands can be used efficiently. We used for implementation an Universal Software Radio Peripheral (USRP), which is the most used Software Defined Radio (SDR) device for research in wireless communications. Expe

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Sui, Rongjuan, Guanghui Zhang, and Haiyan Liu. "Anti-Fouling Behaviors of a Modified Surface Induced by an Ultrasonic Surface Rolling Process for 304 Stainless Steel." Coatings 13, no. 1 (2022): 60. http://dx.doi.org/10.3390/coatings13010060.

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This research aimed to investigate the effects of an ultrasonic surface rolling process (USRP) on the deposition behaviors in CaCO3 crystallization fouling for 304 stainless steel (304SS). The microstructure, surface morphology, and hydrophobic properties of the modified layer were characterized with optical microscopy, a roughness profile measurement instrument, and a contact angle measurement instrument. The corrosion and fouling behaviors of different surfaces were studied in simulated cooling water. The polarization curves and electrochemical impedance spectroscopy (EIS) were used to evalu

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Xu, Shuo, and Jianxin Guo. "Review of Design and Implementation of New Software Radio System based on GNU Radio and USRP." Scientific Journal of Intelligent Systems Research 7, no. 4 (2025): 17–28. https://doi.org/10.54691/g0hqhh68.

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This paper provides a comprehensive review of the design and implementation of software-defined radio (SDR) systems based on the GNU Radio platform and Universal Software Radio Peripheral (USRP) hardware in China. The study highlights the evolution of wireless communication technologies, emphasizing the technical advantages of SDR, including flexibility, scalability, interference resistance, and cost-effectiveness. The analysis explores widely used software platforms (GNU Radio and LabVIEW) and hardware peripherals (USRP and HackRF One), comparing their specifications, functionality, and suita

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Zhong, Jian Kun, and Wen Bo Zeng. "A Signal Tester Design Based on Computer Simulation and Software Defined Radio." Advanced Materials Research 926-930 (May 2014): 1205–9. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.1205.

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Software Defined Radio and Computer Simulation have been taken more and more attention in the 21st century. This article belongs to the software radio category. By capturing signal data using USRP, processing the signal on a computer simulation software, analyzing data, and A Signal tester is designed. Firstly, signal tester capturing is researched based on the platform USRP + GNURadio, through which the process is found out. Secondly, building simulation platform on Matlab, which is powerful for analyzing data, designing algorithm, and simulation. And then, the premise of the correctness of c

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Tudose, Mihai-Liviu, Andrei Anghel, Remus Cacoveanu, and Mihai Datcu. "Pulse Radar with Field-Programmable Gate Array Range Compression for Real Time Displacement and Vibration Monitoring." Sensors 19, no. 1 (2018): 82. http://dx.doi.org/10.3390/s19010082.

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This paper aims to present the basic functionality of a radar platform for real time monitoring of displacement and vibration. The real time capabilities make the radar platform useful when live monitoring of targets is required. The system is based on the RF analog front-end of a USRP, and the range compression (time-domain cross-correlation) is implemented on the FPGA included in the USRP. Further processing is performed on the host computer to plot real time range profiles, displacements, vibration frequencies spectra and spectrograms (waterfall plots) for long term monitoring. The system i

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F., Z. El Bahi, Ghennioui H., and Zouak M. "Performance Evaluation of Energy Detector Based Spectrum Sensing for Cognitive Radio using NI USRP-2930." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1934–40. https://doi.org/10.11591/ijece.v7i4.pp1934-1940.

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This paper presents the performance evaluation of the Energy Detector technique, which is one of the most popular Spectrum Sensing (SS) technique for Cognitive Radio (CR). SS is the ability to detect the presence of a Primary User (PU) (i.e. licensed user) in order to allow a Secondary User (SU) (i.e unlicensed user) to access PU’s frequency band using CR, so that the available frequency bands can be used efficiently. We used for implementation an Universal Software Radio Peripheral (USRP), which is the most used Software Defined Radio (SDR) device for research in wireless communications

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Pérez Insuasti, Juan José, Mónica Andrea Zabala Haro, Alexandra Orfelina Pazmiño Armijos, and Hugo Oswaldo Moreno Avilés. "Análisis de calidad de servicio en la transmisión por AM digital mediante el uso de códecs en USRP." ConcienciaDigital 3, no. 2.2 (2020): 169–87. http://dx.doi.org/10.33262/concienciadigital.v3i2.2.1254.

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El objetivo fue realizar el estudio y análisis de la calidad de servicio en la transmisión am digital mediante el uso de códecs en USRP. La Metodología de desarrollo muestra claramente cómo se realizó el prototipo para la transmisión y recepción, empezando con la selección de dispositivos, el diseño, la ejecución y el análisis de los resultados obtenidos. Se basa en el estudio de las condiciones particulares en la transmisión y recepción de señal en AM digital (DRM), la implementación del transmisor en GNU Radio, la configuración del receptor en HDSDR y Dream SDR. Además de las tarjetas Ettus

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Park, Haeun, Jiyong Yoon, and Youngsik Kim. "In-Band Full-Duplex Wireless Communication Using USRP." Journal of Korean Institute of Electromagnetic Engineering and Science 30, no. 3 (2019): 229–35. http://dx.doi.org/10.5515/kjkiees.2019.30.3.229.

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Chamran, Mohammad Kazem, Kok-Lim Alvin Yau, Rafidah M. D. Noor, and Richard Wong. "A Distributed Testbed for 5G Scenarios: An Experimental Study." Sensors 20, no. 1 (2019): 18. http://dx.doi.org/10.3390/s20010018.

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This paper demonstrates the use of Universal Software Radio Peripheral (USRP), together with Raspberry Pi3 B+ (RP3) as the brain (or the decision making engine), to develop a distributed wireless network in which nodes can communicate with other nodes independently and make decision autonomously. In other words, each USRP node (i.e., sensor) is embedded with separate processing units (i.e., RP3), which has not been investigated in the literature, so that each node can make independent decisions in a distributed manner. The proposed testbed in this paper is compared with the traditional distrib

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R, Bharathi, and Megha T R. "AN IMAGE TRANSFER USING NI-USRP." International Journal of Engineering Applied Sciences and Technology 5, no. 4 (2020): 191–95. http://dx.doi.org/10.33564/ijeast.2020.v05i04.026.

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Marriwala, Nikhil, Gnana Kousalya C., B. Rajasekar, N. M. Nandhitha, Ashu Gautam, and Aarti Sangwan. "Novel Real-Time Decision-Based Carrier Tracking for Software-Defined Radios Using M-ARY QAM Modulation." International Journal of Decision Support System Technology 15, no. 1 (2023): 1–31. http://dx.doi.org/10.4018/ijdsst.317332.

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In this paper, a scalable and real-time decision-based carrier tracking for software defined radio (SDR) for M-ary QAM modulation has been proposed and tested in real-time using the universal software radio peripheral (USRP)-2922. The proposed system provides real-time decision-based carrier tracking for improved efficiency and performance. The real-time transfer of data has been done using the USRP-2922 hardware using the M-ary QAM modulation scheme for data transmission. The novelty of the proposed system is that one can transfer random data (binary bits), text or an image which can be encod

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Jiang, Likun, Xingwang Feng, Huanchun Wu, Guosheng Su, and Bin Yang. "Improved Microstructure of 316LN Stainless Steel Performed by Ultrasonic Surface Rolling." Metals 15, no. 5 (2025): 545. https://doi.org/10.3390/met15050545.

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316LN stainless steel (316LN SS) with a gradient structure was produced by ultrasonic surface rolling processing (USRP). The surface quality of the 316LN SS specimen was improved significantly after the USRP. The experimental results showed that with an increasing number of rolling passes, the thickness of the gradient structure layer increased, and the microhardness decreased in a gradient from the surface to the matrix. The results also indicated that the optimal parameters were as follows: 220 rad/min lathe speed, 0.11 mm rolling space, 0.2 rad/min feed rate, and 5 rolling passes. Under the

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P, Dhivya Lakshmi. "CONSTRUCTING LOW-DENSITY PARITY-CHECK CODES IN DIGITAL COMMUNICATION SYSTEM." ICTACT Journal on Communication Technology 11, no. 2 (2020): 2198–202. https://doi.org/10.21917/ijct.2020.0325.

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In data communications, errors occur when the data travels through different communication channels. Their errors have to be reduced to obtain efficient Bit Error rate (BER). Over unreliable or noisy communication channels, errors in data can be controlled effectively using Error-correcting Code (ECC). NI USRP (National Instruments Universal Software Radio Hardware) 2954R support 5G with multiradio cooperation using Multiple- Input, Multiple Output (MIMO) techniques. The frequency of NI USRP 2954R ranges from 10 MHz to 6GHz with 160MHz bandwidth. In a software radio by mean of software upgrade

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Gaona G., Elvis E., Santiago Cárdenas V., and Elkin G. Muskus R. "Medidas de calidad de voz en una red GSM sobre software libre." Entre Ciencia e Ingeniería 7, no. 14 (2013): 58–65. https://doi.org/10.31908/19098367.610.

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This article presents the results obtained by measuring the quality parameters of a telecommunications network on GSM (Global System Mobile) in the DCS-1800 (Digital Cellular Service - 1800MHz) band; which is used in order to articulate a system of disaster relief in emergency situations, using a USRP (Universal Software Radio Peripheral) in conjunction with IP telephony system based on Asterisk. The USRP is responsible for emulating the operation of a BTS (Base Transceiver Station) performing the functions of a PBX (Private Branch Exchange). The measurements of network performance were made f

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