Journal articles: 'Digital Audio Broadcasting (DAB)'

1

Taura, K., M. Tsujishita, M. Takeda, H. Kato, M. Ishida, and Y. Ishida. "A digital audio broadcasting (DAB) receiver." IEEE Transactions on Consumer Electronics 42, no. 3 (1996): 322–27. http://dx.doi.org/10.1109/30.536126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gilski, Przemysław. "DAB vs DAB+ Radio Broadcasting: a Subjective Comparative Study." Archives of Acoustics 42, no. 4 (2017): 715–23. http://dx.doi.org/10.1515/aoa-2017-0074.

Full text

Abstract:

AbstractIn the age of digital media, delivering high quality content to consumers is one of the most demanding tasks. There exist numerous broadcasting standards, with different pros and cons, and the DAB/DAB+ (Digital Audio Broadcasting) system is one of the most popular among them. From an engineer’s perspective, efficient resource management under limited bandwidth conditions has always been a challenge. In this paper a subjective quality assessment study of the DAB and DAB+ broadcasting system is performed on a representative group of signal samples. It describes the radio link, including a fully functional transmitter designed for the purpose of this test, as well as the receiver side representing a commercially available consumer device, for a truly real-time and end-to-end quality evaluation.

APA, Harvard, Vancouver, ISO, and other styles

3

Waal, Albert. "COEXISTENCE OF TELEVISION BROADCASTING, FM BROADCASTING, DIGITAL BROADCASTING IN DAB AND DRM+ STANDARDS CALCULATION METHODOLOGY." SYNCHROINFO JOURNAL 10, no. 1 (2024): 18–23. http://dx.doi.org/10.36724/2664-066x-2024-10-1-18-23.

Full text

Abstract:

The model parameters of analogue and digital radio and TV broadcasting networks are determined on the basis of data on frequency assignments to radio broadcasting stations using information on issued permits for the use of radio frequency channels of existing and planned radio broadcasting stations. The parameters of the network model are also determined on the basis of data contained in the database on frequency assignments of a radio frequency service organization or radio frequency application materials for obtaining an EMC examination conclusion submitted to a radio frequency service organization to obtain permission to use frequency blocks / radio frequency channels for the declared radio broadcasting stations. The problem of sharing the spectrum in the VHF band by terrestrial digital television broadcasting services (DVB-T standard, etc.), analogue television broadcasting, analogue FM audio broadcasting, digital audio broadcasting DAB/DAB+, DRM+ and RAVIS and the conditions for them coexistence are considered. Compatibility criteria and calculation algorithm are considered. Compatibility criteria and calculation algorithm are considered. Directions for further research are presented.

APA, Harvard, Vancouver, ISO, and other styles

4

Waal, Albert. "ALGORITHM AND INSTRUCTIONS FOR PRACTICAL USE IN THE METHODOLOGY OF COEXISTENCE OF TELEVISION, FM AND DIGITAL BROADCASTING IN DAB AND DRM+ STANDARDS." SYNCHROINFO JOURNAL 10, no. 2 (2024): 2–11. http://dx.doi.org/10.36724/2664-066x-2024-10-2-2-11.

Full text

Abstract:

The parameters of the network model are determined on the basis of data contained in the database on frequency assignments of a radio frequency service organization or radio frequency application materials for obtaining an EMC examination conclusion submitted to a radio frequency service organization to obtain permission to use frequency blocks / radio frequency channels for the declared radio broadcasting stations. The problem of sharing the spectrum in the VHF band by terrestrial digital television broadcasting services (DVB-T standard, etc.), analogue television broadcasting, analogue FM audio broadcasting, digital audio broadcasting DAB/DAB+, DRM+ and RAVIS and the conditions for them coexistence are considered. The most common cases of the developed methodology application can be the following options for calculating EMC and conditions for using electronic distribution systems for television and radio broadcasting: Calculation of reference service area of the protected service; Calculation of EMC between existing and planned for use service and declared service; Calculation of service area of the proposed distribution zone.

APA, Harvard, Vancouver, ISO, and other styles

5

Agarwal, Arun, and S. K. Patra. "Performance Analysis of OFDM Based DAB Systems Using Concatenated Coding Technique." Advanced Materials Research 403-408 (November 2011): 105–13. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.105.

Full text

Abstract:

Radio broadcasting technology in this era of compact disc is expected to deliver high quality audio programmes in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system with coded OFDM technology accomplish this demand by making receivers highly robust against effects of multipath fading environment. In this paper, we have analyzed the performance of DAB system conforming to the parameters established by the ETSI (EN 300 401) using time and frequency interleaving, concatenated Bose-Chaudhuri-Hocquenghem coding and convolutional coding method in different transmission channels. The results show that concatenated channel coding improves the system performance compared to convolutional coding.

APA, Harvard, Vancouver, ISO, and other styles

6

Palmer, Duncan, Terry Moore, Chris Hill, Marcus Andreotti, and David Park. "Radio Positioning using the Digital Audio Broadcasting (DAB) Signal." Journal of Navigation 64, no. 1 (2010): 45–59. http://dx.doi.org/10.1017/s037346331000041x.

Full text

Abstract:

Over the recent decades, there have been a number of trends that have driven the desire to improve the ability to position and navigate in all environments. While GPS has been the driving factor behind most of these trends, there are limitations to GPS that have become more evident over time as the World has increasingly come to rely on location. These limitations are mostly due to the low transmission power of GPS satellites, where navigation signals broadcast from space are comparatively weak, especially by the time they have travelled to receivers on the ground. This makes the signals particularly vulnerable to fading in difficult environments such as built-up urban areas. The low signal-to-noise ratio (SNR) also means that the signals are susceptible to jamming, both hostile and accidental.This motivates the need for non-GPS (or, more generally, non-GNSS) navigation technologies, for example, terrestrial based alternatives to GNSS such as eLoran. But, there is also significant interest in the exploitation of other non-navigation signals for positioning and navigation purposes. These so-called ‘Signals of Opportunity’ (SoOP) do not generally require any alterations to existing communications transmission infrastructure and often use alternative multi-carrier modulation techniques to those methods used by most GNSS services. The major challenge of using a SoOP for location purposes is that the transmitter network infrastructure has not generally been designed with positioning as a requirement.An ongoing project, at the Institute of Engineering Surveying and Space Geodesy (IESSG) of the University of Nottingham, is directed towards an investigation of the potential of the Digital Audio Broadcast (DAB) signal for positioning purposes. A prototype Software Defined Radio (SDR) DAB positioning receiver has been developed and has now been tested. This paper presents a detailed review of the structure of the DAB signals and explains how these signals can be used as the basis of a positioning system. In addition the development of the prototype SDR receiver and the initial results are presented and discussed.

APA, Harvard, Vancouver, ISO, and other styles

7

Prosch, Theodor A. "Digital audio broadcasting (DAB) over non-stationary satellite systems." International Journal of Satellite Communications 18, no. 6 (2000): 433–56. http://dx.doi.org/10.1002/1099-1247(200011/12)18:6<433::aid-sat669>3.0.co;2-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Falkowski-Gilski, Przemysław. "Digital Transformation of Terrestrial Radio: An Analysis of Simulcasted Broadcasts in FM and DAB+ for a Smart and Successful Switchover." Applied Sciences 11, no. 23 (2021): 11114. http://dx.doi.org/10.3390/app112311114.

Full text

Abstract:

The process of digitizing radio is far from over. It is an important interdisciplinary aspect, involving Big Data and AI (Artificial Intelligence) when it comes to classifying and handling content, and an organizational challenge in the Industry 4.0 concept. There exist several methods for delivering audio signals, including terrestrial broadcasting and internet streaming. Among them, the DAB+ (Digital Audio Broadcasting plus) system is one of the leading standards of terrestrial digital radio transmission. Compared with analog FM (frequency modulation) radio, it is more bandwidth efficient and offers greater possibilities when it comes to delivering content and forming an ensemble and multiplex. Currently, many countries worldwide, particularly European States, are still making adjustments in order to perform an efficient switchover from analog FM to digital DAB+ radio. This paper presents the current situation of the digital radio market as well as the results of a subjective quality evaluation study and questionnaire concerning broadcasting in both digital and analog techniques. It involves radio programs, transmitting both speech and music signals, simulcasted in DAB+ and FM standards. It also presents the development of the national multiplex. The results of this study may help both researchers and scientists as well as policy makers and professionals active in the field of broadcasting and electronic media and not to mention the consumption of multimedia content.

APA, Harvard, Vancouver, ISO, and other styles

9

Soothill, David B. "Digital Audio Broadcasting (DAB) in the Asia-Pacific Region: A Regional Perspective." Media International Australia 91, no. 1 (1999): 33–42. http://dx.doi.org/10.1177/1329878x9909100106.

Full text

Abstract:

The Asia-Pacific is the world's largest region and it has a huge range of potential radio uses that analogue terrestrial broadcasting simply cannot meet. This article explores the impact that digital radio transmission will have on the region, and the importance of satellite broadcasting and multichannel broadcasting for better coverage and quality of services.

APA, Harvard, Vancouver, ISO, and other styles

10

Ju, Sang-Lim, Myung-Sun Baek, and Kyung-Seok Kim. "Channel-Allocation Plan for National and Local T-DAB Services in VHF Band III." Wireless Communications and Mobile Computing 2018 (June 20, 2018): 1–12. http://dx.doi.org/10.1155/2018/1420940.

Full text

Abstract:

The digital audio broadcasting (DAB) system is mainly designed for large-area coverage and is suited for a single-frequency network (SFN) operating in Very High Frequency (VHF) Band III. To operate successfully, the SFN requires a different network-planning approach for multiple-frequency networks and should avoid self-interference. This paper focuses on nationwide SFN planning and DAB channel-allocation planning to replace all frequency-modulation (FM) services with terrestrial DAB services in VHF Band III. In South Korea, VHF Band III has been used for terrestrial digital multimedia broadcasting (T-DMB) services; thus, available frequencies should be investigated for T-DAB services and the nationwide SFN. An approach for broadcasting channel-interference analysis is proposed herein. For the interference analysis, the geographical features and the information for stations of legacy FM radio broadcasting and T-DMB, such as transmission parameters, are considered. The ratio of the interference area to the coverage is calculated via the channel-interference analysis. Areas affected by the self-interference in the nationwide SFN are investigated. The results of this paper provide insights regarding channel-allocation planning for T-DAB services and an approach for nationwide SFN planning.

APA, Harvard, Vancouver, ISO, and other styles

11

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.

Full text

Abstract:

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. 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. DAB technology is integrated with USRP device using prominent OFDM technique for promise delivery of high quality audio signal. DAB works under four transmission modes in this paper. In this paper RF0 module is used USRP device is connected with dual band vertical antenna with 2.4 and 5GHz frequency as Tx1. This transmitting VI snippet program will support all file formats such as.wav, mp3, etc. the intention of the paper is to transmit the real time data through long distance using DAB technology in remote laboratory. The proposed system is implemented in virtual lab so that it can be accessed by any user from anywhere. This system is successfully tested on institute of aeronautical engineering virtual lab.

APA, Harvard, Vancouver, ISO, and other styles

12

Harliantara, Tri Purnaningsih Heny, Mulyanadi Deni, Farni Syam Maella Nurannafi, and Zulaikha. "SIMULCAST SYSTEM: IMPLEMENTATION OF ANALOGUE AND DIGITAL RADIO BROADCASTING MEDIA IN INDONESIA." INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT 9, no. 2 (2024): b616—b627. https://doi.org/10.5281/zenodo.10781619.

Full text

Abstract:

Until now radio broadcasting operators continue to look for breakthrough innovations both in terms of broadcasting technology development (broadcasting) and broadcast material. The Indonesian government, specifically for radio, plans to anticipate the presence of the digital era by transforming digital radio technology with the DAB (Digital Audio Broadcasting) and DRM (Digital Radio Mondiale) systems in an effort to foster public interest in listening to digital radio with the simulcast system. This system is a combination of services to the audience with two or more channels, namely analog and digital. Radio broadcasting operators need to continue to seek innovation in order to be competitive with other digital media in this convergence era, including utilizing the internet (Broadband).         Literature reveals that based on data from Kominfo (Ministry of Communication and Informatics) in 2021, the number of radio broadcasting institutions throughout Indonesia that have Broadcasting Operations Permits (IPP) is 1,902 stations. Apart from Public Broadcasting Institutions (LPP) Radio of the Republic of Indonesia (RRI) and Local Public Broadcasting Institutions (LPPL), radio groups in Indonesia are divided into two, namely Private Broadcasting Institutions (LPS) and Community Broadcasting Institutions (LPK). LPS operates for commercial purposes. Meanwhile, LPK is usually established by a community based on area, issue, or interest. From the perspective of media economics, the radio industry is seen as a media industry that has distinctive characteristics in terms of audiences.       This research used a qualitative approach that has not been widely used to examine digital radio technology with the DAB (Digital Audio Broadcasting) and DRM (Digital Radio Mondiale) systems in an effort to foster public interest in listening to digital radio with the simulcast system. Data collection techniques were carried out through field observations, interviews, and documentation studies.     This research confirms that it is time for Indonesia to transform analog radio to digital as time changes. In addition, this research finds out that current radio broadcasting, apart from transmitting over the air or (broadcast) in the form of sound or sound with an analog system, also needs to transmit through sound or voice with a digital system and if both channels are played then it is called a simulcast system. 

APA, Harvard, Vancouver, ISO, and other styles

13

Gilski, Przemysław, and Jacek Stefański. "Can the Digital Surpass the Analog: DAB+ Possibilities, Limitations and User Expectations." International Journal of Electronics and Telecommunications 62, no. 4 (2016): 353–61. http://dx.doi.org/10.1515/eletel-2016-0049.

Full text

Abstract:

Abstract Radio is by far the most accessible medium. With its mobility and availability, it attracts listeners by its simplicity and friendliness. The present information situation is characterized by the convergence of computers, mobile devices, telecommunication and broadcasting technologies and the divergence of different ways of delivering and storing media. Consumers are overwhelmed by new electronic gadgets appearing every year. They are astonished by new technical innovations that are being designed to ease their life and change their habits. Even the broadcasting sector itself is facing significant changes, especially a growing competition between the private and public sector. This article reviews the current status of analog and digital broadcasting technologies. It analyzes a case study of user expectations related with today’s digital media, particularly radio transmission. We discuss the principal possibilities, limitations and user expectations related with digital audio broadcasting, as well as the economic, technological, regulatory and frequency management factors.

APA, Harvard, Vancouver, ISO, and other styles

14

Evens, Tom. "DAB+ as a systemic innovation: Stakeholder interests and the introduction of digital radio." European Journal of Communication 35, no. 5 (2020): 502–17. http://dx.doi.org/10.1177/0267323120928218.

Full text

Abstract:

Radio is on the brink of a digital wave brought about by the introduction of digital audio broadcasting (DAB+). Despite market success in a few European countries, there remains little evidence of industry support and consumer demand. By means of a stakeholder analysis, the article identifies the main stakeholders in the implementation of digital radio in the region of Flanders, to recognise tensions between public and private interests and to discuss possible government policies aimed at promoting the standard among all stakeholders. By seeing DAB+ as a systemic innovation, it offers a structural approach to address the ongoing dynamics of the organisational and institutional system around DAB+ and other media distribution technologies in other European markets (or beyond).

APA, Harvard, Vancouver, ISO, and other styles

15

Tsiamitros, D., D. Stimoniaris, T. Kottas, et al. "Digital Audio Broadcasting (DAB)-based demand response for buildings, electric vehicles and prosumers (DAB-DSM)." Energy Procedia 159 (February 2019): 527–32. http://dx.doi.org/10.1016/j.egypro.2018.12.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Agarwal, Arun, and S. K. Patra. "Performance Prediction of Eureka-147 DAB System Using Interleaving and Different Coding Rates." Advanced Materials Research 403-408 (November 2011): 4119–25. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.4119.

Full text

Abstract:

Radio broadcasting technology has evolved rapidly over the last few years due to ever increasing demands for as high quality sound services with ancillary data transmission in mobile environment. The Eureka-147 Digital Audio Broadcasting (DAB) system with coded OFDM technology accomplish this demand by making receivers highly robust against effects of multipath fading environment. In this paper, we have analyzed the performance of DAB system conforming to the parameters established by the ETSI (EN 300 401) using frequency interleaving and different coding rates in different transmission channels. The results show that interleaving is essential for the forward error correction to work properly and an increased coding rate makes the system more flexible without increase in the receiver complexity.

APA, Harvard, Vancouver, ISO, and other styles

17

Gilski, Przemysław, and Jacek Stefański. "Subjective and Objective Comparative Study of DAB+ Broadcast System." Archives of Acoustics 42, no. 1 (2017): 3–11. http://dx.doi.org/10.1515/aoa-2017-0001.

Full text

Abstract:

Abstract Broadcasting services seek to optimize their use of bandwidth in order to maximize user’s quality of experience. They aim to transmit high-quality digital speech and music signals at the lowest bitrate. They intend to offer the best quality under available conditions. Due to bandwidth limitations, audio quality is in conflict with the number of transmitted radio programs. This paper analyzes whether the quality of real-time digital DAB+ broadcasted radio programs surpasses the quality offered by analog FM radio. We also perform a subjective and objective quality assessment comparative study of the HE-AAC v2 audio codec used in DAB+. The subjective studies were carried out using the MOS test methodology, whereas the objective tests were realized using the ViSQOLAudio metric. These studies were followed by a questionnaire concerning the migration from analog to digital radio domain.

APA, Harvard, Vancouver, ISO, and other styles

18

Steinheber, Juergen. "Digital radio – the fight for diffusion in Germany." info 16, no. 5 (2014): 70–85. http://dx.doi.org/10.1108/info-02-2014-0006.

Full text

Abstract:

Purpose – The diffusion of digital radio has experienced more challenges than for digital TV regarding a digital switchover. The purpose of this paper shows on the specific case of Germany, which difficulties the digital sound broadcasting technology of Digital Audio Broadcasting (DAB) has been facing from several points of view. The difficulties are reviewed and outlined to overcoming different barriers and to facilitating its diffusion. Design/methodology/approach – The paper analyses how the diffusion of digital radio is perceived by industry representatives such as radio consultants and several stakeholders along the value chain of the radio industry. In semi-structured interviews, participants describe and evaluate the challenges for DAB as digital audio broadcasting standard mainly in Germany. Findings – After two decades of deploying digital radio in Germany, its success is still missing. Various very different aspects have prevented the diffusion of the new technology. Among various barriers, the radio industry sees missing benefits, marketing errors and a lack of inter-industrial collaboration as barriers in a retro-perspective. Research limitations/implications – The analysis does not cover other countries, where DAB as standard was introduced. Also other standards for digital radio are not considered. Practical implications – With referring to barriers for digital radio, there is a scope for those countries about to introduce the technology to troubleshoot the failings of overcoming barrier. An idea can emerge, how authorities and industrial stakeholders can help to facilitate the diffusion of digital radio. It also indicates the need of governmental interaction for the coordination of a technology introduction in a network industry. Social implications – The theoretical model, referred to, gives a good overview of potential diffusion barriers as most identified problems for the German case. The model and the illustrated problems of the paper can be used in practice to manage potential diffusion problems during technology introductions. Originality/value – There is a lack of published information about the faced challenges for the diffusion of digital radio. The retro-perspective benefits from the broad experience of participants having observed the challenges of the past decade with DAB in Germany. Additionally, the results are mapped to a theoretical framework with limits for the diffusion of innovation for generalising.

APA, Harvard, Vancouver, ISO, and other styles

19

Pratima, Manhas, and Soni M.K. "Optimized OFDM Model Using CMA Channel Equalization for BER Evaluation." Bulletin of Electrical Engineering and Informatics 6, no. 2 (2017): 133–39. https://doi.org/10.11591/eei.v6i2.614.

Full text

Abstract:

Orthogonal Frequency Division Multiplexing (OFDM) is a type of Multicarrier Modulation (MCM) technique in which entire bandwidth is divided into large number of small sub-carriers and each subcarrier is transmitted parallel to achieve higher data rates. It has various applications like Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB) and wireless LAN.OFDM technique is widely used in wireless communication system because of its very high data rate. The performance of FFT based OFDM system using Linear and cyclic channel coding and Constant Modulus Algorithm (CMA) equalizer is simulated using simulink model. The BER saving using the optimized proposed model with both linear and cyclic channel coding along with CMA equalizer is evaluated. The proposed work using cyclic channel coding with QPSK/QAM modulation and CMA as channel equalization under AWGN channel results in 52.6% and 96.3% BER reduction as compared to conventional OFDM model without channel coding, channel equalization and channel fading. So, CMA equalizer is used to enhance the performance of OFDM system.

APA, Harvard, Vancouver, ISO, and other styles

20

WANG, CHUN-CHING, YIH-CHUAN LIN, and CHI-YIN LIN. "ROM REDUCTION FOR OFDM SYSTEM USING TIME-STEALING STRATEGY." Journal of Circuits, Systems and Computers 15, no. 06 (2006): 907–21. http://dx.doi.org/10.1142/s0218126606003398.

Full text

Abstract:

Modern communication systems frequently exploit the OFDM (Orthogonal Frequency Division Multiplex) technique to obtain a highly robust transmission of multimedia information, such as digital audio/video broadcast. OFDM and most of the other multimedia compression techniques usually require expensive computations, e.g., FFT (Fast Fourier Transform) and IMDCT (Inverse Modified Discrete Cosine Transform) processing. Traditionally, designing FFT and IMDCT separately involves a significant amount of redundancy in hardware. To reduce the required hardware, this investigation proposes a new ROM-sharing design for storing both FFT twiddle factors and IMDCT coefficients in a DAB (Digital Audio Broadcasting) receiver. We first analyze the correlation between FFT operations and IMDCT operations, and then the combinational logic circuit in the FFT processor is modified such that both IMDCT coefficients and FFT twiddle factors can be obtained simultaneously from a shared ROM. This design can also be applied for computing IFFT (Inverse Fast Fourier Transform) and MDCT for DAB transmitter. Compared with the traditional design using separate module scheme, our design does not need extra ROM for IMDCT/MDCT modules. Therefore, the new scheme offers superior solution for combining high-performance FFT (IFFT) operation and IMDCT (MDCT) operation.

APA, Harvard, Vancouver, ISO, and other styles

21

Manhas, Pratima, and M. K. Soni. "Optimized OFDM Model Using CMA Channel Equalization for BER Evaluation." Bulletin of Electrical Engineering and Informatics 6, no. 2 (2017): 133–39. http://dx.doi.org/10.11591/eei.v6i2.614.

Full text

Abstract:

Orthogonal Frequency Division Multiplexing (OFDM) is a type of Multicarrier Modulation (MCM) technique in which entire bandwidth is divided into large number of small sub-carriers and each subcarrier is transmitted parallel to achieve higher data rates. It has various applications like Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB) and wireless LAN.OFDM technique is widely used in wireless communication system because of its very high data rate. The performance of FFT based OFDM system using Linear and cyclic channel coding and Constant Modulus Algorithm (CMA) equalizer is simulated using simulink model. The BER saving using the optimized proposed model with both linear and cyclic channel coding along with CMA equalizer is evaluated. The proposed work using cyclic channel coding with QPSK/QAM modulation and CMA as channel equalization under AWGN channel results in 52.6% and 96.3% BER reduction as compared to conventional OFDM model without channel coding, channel equalization and channel fading. So, CMA equalizer is used to enhance the performance of OFDM system.

APA, Harvard, Vancouver, ISO, and other styles

22

Sokolov, Sergei A., and Yuri A. Kovalgin. "INFLUENCE OF THE COMPRESSION ALGORITHMS ON THE QUALITY OF AUDIO PROGRAMS IN DRM DIGITAL RADIO BROADCASTING SYSTEM." T-Comm 15, no. 7 (2021): 4–13. http://dx.doi.org/10.36724/2072-8735-2021-15-7-4-13.

Full text

Abstract:

This work studied the influence of MPEG-4 HE-AAC v.2 and MPEG-4 xHE-AAC compression algorithms on the reproduction performance of high-quality audio signals. The first part of the article is based on the analysis of earlier publications, studied quality of the compression algorithms for MPEG-4 ISO/IEC 14493-3 (AAC, AAC+SBR, PS, AAC+SBR+PS) and MPEG D Surround standards applied in MPEG-4 HE-AAC v.2 and MPEG-4 xHE-AAC codecs of DAB and DRM systems for digital audio broadcasting, respectively. It has been demonstrated that their use for processing of high-quality audio signals in the frequency range of 40…15000 Hz, allowed to reduce the digital-data rate at the output to 24…30 êbit/s, without observing noticeable phenomena. This conclusion was confirmed in the second part of the article, which described the results of relative comparison of the quality of reproduction of audio signals broadcasted via analogues FM or digital DRM channels. The equipment employed for their realization was described, as well as the methodology to obtain test recordings in order to perform the statistical data analysis. Further, the specific data scales were shown to evaluate the signal pairs being compared. Results of the experiments and their analysis confirmed that, for a digital data rate of 30 êbit/s obtained at the output of the MPEG-4 xHE-AAC coder, the difference in quality was rather weak for audio signals ranging from 40 to 15000 Hz, broadcasted via both analogues and digital channels. In addition, only a marginal difference was noticed for the signal pairs received from the digital output channels of the transmitter processor and DRM receiver. It has been demonstrated that the MPEG-4 xHE-AAC codec, compared to the previous MPEG-4 HE-AAC v.2 version, exhibited clear advantages for practical applications in terms of sound quality. Based on the gained experience, common criteria of deterioration of the data quality were formulated and generalized for all audio compression MPEG standards.

APA, Harvard, Vancouver, ISO, and other styles

23

Mohammed, Samir Jasim, and Zaid Saadi Hussein. "Design and implementation DVB-S & DVB-S2 systems." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 3 (2020): 1444–52. https://doi.org/10.11591/ijeecs.v20.i3.pp1444-1452.

Full text

Abstract:

Digital video broadcasting plays an important role in most digital communication systems. Digital broadcasting systems are designed with great accuracy and delicate design which has a major role in our lives today especially digital video broadcasting. It is these systems that are considered to be the most advanced in transmission, reception and reliability. From these systems they develop through the digital video broadcasting project group.The most important are digital video broadcasting of terrestrial, digital video broadcasting of cable and digital video broadcasting of satellite because of that many user's desires to use communications and entertainment in their lives there are new and demanding situations that the standards of these systems can only meet for their own applications .In this paper, it will design and implement the digital video broadcasting of satellite first generation and digital video broadcasting of satellite second generation of binary data,image and audio using Matlab-Simulink environment.In addition, will calculate the bit error rate of the signal. This system is designed with precision to improve performance errors and increase transmission capacity as well as provide a safe environment for information.

APA, Harvard, Vancouver, ISO, and other styles

24

M., Drakshayini, and Arun Vikas. "An Efficient Orthogonal Frequency Division Multiplexing (OFDM) System and Performance Analysis of Digital Audio Broadcasting (DAB) System." International Journal of Computer Applications 148, no. 8 (2016): 12–16. http://dx.doi.org/10.5120/ijca2016911238.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Aspar and Muhammad Anshar. "Transformasi Radio Digital: Tinjauan Teknologi, Konten dan Perilaku Khalayak." MAUIZOH: Jurnal Ilmu Dakwah dan Komunikasi 9, no. 2 (2024): 171–80. https://doi.org/10.30631/mauizoh.v9i2.118.

Full text

Abstract:

Perkembangan teknologi digital membawa dampak signifikan bagi industri radio sebagai media komunikasi tertua. Perubahan perilaku khalayak yang lebih bergantung pada internet, media sosial, dan platform streaming memaksa radio beradaptasi agar tetap relevan di era digital, Penulisan ini bertujuan mengkaji adaptasi radio sebagai media tradisional serta pola konsumsi khalayak di era digital. Penelitian ini menggunakan pendekatan kualitatif berbasis studi literatur untuk menganalisis transformasi radio di era digital, dengan mengumpulkan data sekunder dari jurnal, buku, artikel, dan laporan industri. Metode analisis konten diterapkan untuk mengidentifikasi tema utama perubahan radio, serta membandingkan karakteristik radio tradisional dan digital untuk memahami dampak teknologi baru terhadap pola konsumsi khalayak. Transformasi radio dari teknologi FM dan AM ke radio digital, seperti Digital Audio Broadcasting (DAB) dan radio streaming, telah mengubah cara penyebaran informasi dan interaksi khalayak. Radio digital menawarkan fleksibilitas lebih besar dengan akses on-demand, memungkinkan pendengar memilih konten sesuai minat mereka. Selain itu, radio digital memanfaatkan media sosial dan aplikasi untuk memperluas interaksi dua arah dengan khalayak secara lebih cepat dan langsung. Kehadiran podcasting juga memungkinkan pendengar menikmati program kapan saja, meningkatkan jangkauan dan relevansi stasiun radio di era digital.

APA, Harvard, Vancouver, ISO, and other styles

26

Mučalo, Marina, and Anita Šulentić. "Radio in the Promotion of Croatian Tourism." Medijska istraživanja 27, no. 2 (2021): 103–26. http://dx.doi.org/10.22572/mi.27.2.5.

Full text

Abstract:

Radio is a traditionally popular medium that still has its continuous and stable listenership. The digital age has endowed it with new technical and technological possibilities and multimedia, including a big breakthrough of digital audio broadcasting (DAB+). The Republic of Croatia is one of the leading European road trip destinations. Most of the tourists reach Croatia by car, which allows them to use their own vehicles for excursions during their holidays. Almost half of the population of the European Union is still in the habit of listening to the radio while driving. Therefore, radio stations, particularly those based in Adriatic Croatia, should not be left out from the endeavours to achieve the best possible results in the sector of tourism. The paper presents the findings of a qualitative survey that was conducted during January and February 2021 at radio stations whose headquarters are in this area (N=49). The aim of the research was to determine the current engagement of radio in the production of content intended for domestic and foreign tourists, the modalities and dynamics of cooperation with tourism entities in the field of broadcasting and the potential use of radio in the post-Covid tourist season. Twenty-eight radio editors (56%) responded to the survey. All of them consider radio to be a good medium for tourist promotion, yet the findings indicate a lack of offer of news and promotional tourist content. The most common reasons are unfavourable financial and personnel circumstances. With the synergy between tourist entities and radio stations, radio could prove to be a reliable business partner.

APA, Harvard, Vancouver, ISO, and other styles

27

Redouane, Berber, Bouasria Fatima, Chetioui Mohammed, Damou Mehdi, and Boudkhil Abdelhakim. "A High Performance Hybrid Two Dimensional Spectral/Spatial NZCC/MD Code for SAC-OCDMA Systems with SDD Detection." International journal of Computer Networks & Communications 14, no. 02 (2022): 61–75. http://dx.doi.org/10.5121/ijcnc.2022.14204.

Full text

Abstract:

This paper proposes a new technique to construct a hybrid zero cross-correlation (NZCC) based on multiple diagonal (MD) code for two-dimensional (2D) spectral amplitude coding for optical code division multiple access code division multiple access (SAC-OCDMA) systems. The proposed hybrid code eliminates totally the multiple access interference (MAI) between a large number of users and allows them to connect simultaneously via the optical communication link with a high speed to receive huge data and serve various areas such as Internet, telephony, DAB radio, digital audio broadcasting, and DVB video. Simulation results demonstrate that the performance of such a SAC-OCDA system based on novel 2D hybrid NZCC/MD code can be easily improved keeping a less complex structure using couplers for direct spectral/spatial dimension (SDD) detection and show superior bit error rate (BER) values comparing to previously developed two-dimensional codes including perfect difference (2D-PD), diagonal Eigen-value units (2D-DEU), multi-service (2D-MS) and balanced incomplete block design (2D-BIBD) codes.

APA, Harvard, Vancouver, ISO, and other styles

28

Singh, Pankaj Kumar. "Performance Analysis of Associate Radix-2, Radix- 4 and Radix-8 based FFT using Folding Technique." International Journal for Research in Applied Science and Engineering Technology 9, no. 10 (2021): 1489–94. http://dx.doi.org/10.22214/ijraset.2021.38649.

Full text

Abstract:

Abstract : In recent years, as a result of advancing VLSI technology, Orthogonal Frequency Division Multiplexing (OFDM) has received a great deal of attention and has been adopted in many new generation wideband data communication systems such as IEEE 802.11a, IEEE 802.16e, HiPerLAN/2, Digital Audio/Video Broadcasting (DAB/DVB), and for 4G Radio mobile communications. This is because of its high bandwidth efficiency as the use of orthogonal waveforms with overlapping spectra. The immunity to multipath fading channel and the capability for parallel signal processing make it a promising candidate for the next generation mobile communication systems. The modulation and demodulation of OFDM based communication systems can be efficiently implemented with an FFT and IFFT, which has made the FFT valuable for those communication systems. The complexity of an OFDM system highly depends upon the computation of Fast Fourier Transform (FFT) algorithm. With the advent of new technology in the fields of VLSI and communication, there is also an ever growing demand for high speed processing and low area design. It is also a well-known fact that the multiplier unit forms an integral part of processor design. Due to this regard, high speed multiplier architectures become the need of the day.

APA, Harvard, Vancouver, ISO, and other styles

29

Haque, Mousumi, Yosuke Sugiura, and Tetsuya Shimamura. "Detection of Practical Primary Users in Severe Noise Environments for Cognitive Radio." American Journal of Networks and Communications 13, no. 2 (2024): 97–107. http://dx.doi.org/10.11648/j.ajnc.20241302.12.

Full text

Abstract:

Cognitive radio (CR) is one of the compelling ideas to solve the spectrum scarcity problem for rapid developments in wireless communication systems. In CR systems, signal detection for orthogonal frequency division multiplexing (OFDM) systems in severe noise environments is a key challenge. The area of practical primary user detection has not been explored in depth. The proposed method is an effective method for sensing OFDM applications, which are the practical primary users, for low signal-to-noise (SNR) cases. In the proposed method, the parallel combination of the comb filter and the time-domain autocorrelation function is exploited. The detection performance is measured for various OFDM system applications, including the IEEE 802.11a wireless LAN (WLAN) radio interface, long-term evaluation (LTE), and digital audio broadcasting (DAB) for various CP ratios under 16-quadrature amplitude modulation (16-QAM) and 64-quadrature amplitude modulation (64-QAM) over multipath Rayleigh fading channels with additive white Gaussian noise (AWGN). Furthermore, the OFDM sensing is possible in the presence of noise uncertainty and the sensing performance is compared under consideration with and without noise uncertainty cases. The simulation results demonstrated that our proposed method undoubtedly improves the sensing performances (up to 11 dB SNR gain) of practical primary users more than the conventional spectrum detection methods for low SNR cases.

APA, Harvard, Vancouver, ISO, and other styles

30

Rana, Md Milon, Tajkuruna Akter Tithy, Nefaur Rahman, and Md Mehedi Hasan. "PAPR Reduction Techniques and Their BIT Error Rate Measurement at OFDM in LTE System." International Journal on AdHoc Networking Systems 12, no. 4 (2022): 1–16. http://dx.doi.org/10.5121/ijans.2022.12401.

Full text

Abstract:

Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB)and it is indeed in use. These descriptions are simplified version of the detailed descriptions provided by 3gpp. It is a superior technology for the high-speed data rate of wire-line and wireless communication systems. The OFDM has many advantages over other techniques such as its high capacity and immunity against multipath fading channels. However ,one of the main drawbacks of the OFDM system is the high-peak-to-average power ratio (PAPR) that leads the system to produce in-band distortion and out-of-band radiation because of the non-linearity and reduces its efficiency is the distortion of the signal caused at the High Power Amplifier (HPA) of a transmitter . Therefore, it is highly desirable to reduce the PAPR of an OFDM signal. For this, numerous techniques have been proposed to overcome the PAPR problem such as i) selective mapping(SLM) ii) partial transmit sequence (PTS), iii) clipping, iv) clipping and filtering. In this paper, the PTS technique was analytically reviewed as one of the important methods to reduce the high PAPR problem. Simulations are used to analyze the efficiency of the techniques used which signifies OFDM to be providing much better PAPR reduction and a better Bit Error Rate (BER) . From simulation results clipping method shows good PAPR reduction with significant amount of BER degradation. Clipping and filtering method shows slight increase in PAPR with small degradation in BER performance than Clipping method and both methods are computationally less complex. PTS provides good PAPR reduction with high computational complexity.

APA, Harvard, Vancouver, ISO, and other styles

31

International, Journal on AdHoc Networking Systems (IJANS) Vol. 12 No. 4. October 2022. "PAPR Reduction Techniques and Their BIT Error Rate Measurement at OFDM in LTE System." International Journal on AdHoc Networking Systems (IJANS) 12, no. 4 (2025): 1–16. https://doi.org/10.5121/ijans.2022.12401.

Full text

Abstract:

Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB)and it is indeed in use. These descriptions are simplified version of the detailed descriptions provided by 3gpp. It is a superior technology for the high-speed data rate of wire-line and wireless communication systems. The OFDM has many advantages over other techniques such as its high capacity and immunity against multipath fading channels. However ,one of the main drawbacks of the OFDM system is the high-peak-to-average power ratio (PAPR) that leads the system to produce in-band distortion and out-of-band radiation because of the non-linearity and reduces its efficiency is the distortion of the signal caused at the High Power Amplifier (HPA) of a transmitter . Therefore, it is highly desirable to reduce the PAPR of an OFDM signal. For this, numerous techniques have been proposed to overcome the PAPR problem such as i) selective mapping(SLM) ii) partial transmit sequence (PTS), iii) clipping, iv) clipping and filtering. In this paper, the PTS technique was analytically reviewed as one of the important methods to reduce the high PAPR problem. Simulations are used to analyze the efficiency of the techniques used which signifies OFDM to be providing much better PAPR reduction and a better Bit Error Rate (BER) . From simulation results clipping method shows good PAPR reduction with significant amount of BER degradation. Clipping and filtering method shows slight increase in PAPR with small degradation in BER performance than Clipping method and both methods are computationally less complex. PTS provides good PAPR reduction with high computational complexity.

APA, Harvard, Vancouver, ISO, and other styles

32

K., Sambasivarao* N.V. Ramana &. M. Venkata Manikanta. "EFFECT OF TIME INTERLEAVING PARAMETERS IN MOBILE DVB-T2 SYSTEMS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 175–81. https://doi.org/10.5281/zenodo.805411.

Full text

Abstract:

DVB-T2 is an abbreviation for Digital Video Broadcasting– Second Generation Terrestrial.It is the extension of the television standard DVB-T. DVB-T2 succeeds in achieving the reception quality and a capacity increase of 50% over its predecessor DVB-T. This system transmits compressed digital audio, video, and other data using physical layer pipes (PLPs),using OFDM modulationtechnique (modes of 1k, 2k, 4k, 8k, 16k, and 32k)with concatenated channel coding and interleaving. DVB-T2 implements a very flexible time interleaving that allows multiple tradeoffs in terms of time diversity, latency and power saving. In this paper, we study in detail these tradeoffs in the context of mobile reception.. In addition, we propose the utilization of upper layer FEC protection in order to overcome the limitations of the DVB-T2 physical layer for the provision of long time interleaving, and enable fast zapping. Using this UL-FEC we can get gains up to 4 dB to 9 dB in highdiversity scenarios.FEC is concatenated low density parity check code(LDPC) and BCH codes (as in DVB-S2 and DVB-C2), with rates 1/2, 3/5, 2/3, 3/4, 4/5, and 5/6.The performance is evaluated by means ofcomputer simulations. For the simulations we have used a configuration of 64QAM, code rate 1/2 and maximumsub-slicing. Our investigation shows that the utilization of sub-slicing is highly beneficial in fast fading scenarios.

APA, Harvard, Vancouver, ISO, and other styles

33

Mohammady, Somayeh, Ronan Farrell, David Malone, and John Dooley. "Performance Investigation of Peak Shrinking and Interpolating the PAPR Reduction Technique for LTE-Advance and 5G Signals." Information 11, no. 1 (2019): 20. http://dx.doi.org/10.3390/info11010020.

Full text

Abstract:

Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has been seen, the OFDM based waveforms work well with time division duplex operation in new radio (NR) systems in 5G systems, supporting delay-sensitive applications, high spectral efficiency, massive multiple input multiple output (MIMO) compatibility, and ever-larger bandwidth signals, which has demonstrated successful commercial implementation for 5G downlinks and uplinks up to 256-QAM modulation schemes. However, the OFDM waveforms suffer from high peak to average power ratio (PAPR), which is not desired by system designers as they want RF power amplifiers (PAs) to operate with high efficiency. Although NR offers some options for maintaining the efficiency and spectral demand, such as cyclic prefix based (CP-OFDM), and discrete Fourier transform spread based (DFT-S-OFDM) schemes, which have limiting effects on PAPR, the PAPR is still as high as 13 dB. This value increases when the bandwidth is increased. Moreover, in LTE-Advance and 5G systems, in order to increase the bandwidth, and data-rate, carrier aggregation technology is used which increases the PAPR the same way that bandwidth increment does; therefore, it is essential to employ PAPR reduction in signal processing stage before passing the signal to PA. In this paper, we investigate the performance of an innovative peak shrinking and interpolation (PSI) technique for reducing peak to average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) based signals at waveform generation stage. The main idea behind the PSI technique is to extract high peaks, scale them down, and interpolate them back into the signal. It is shown that PSI technique is a possible candidate for reducing PAPR without compromising on computational complexity, compatible for existing and future telecommunication systems such as 4G, 5G, and beyond. In this paper, the PSI technique is tested with variety of signals in terms of inverse fast Fourier transform (IFFT) length, type of the signal modulation, and applications. Additional work has been carried out to compare the proposed technique with other promising PAPR reduction techniques. This paper further validates the PSI technique through experimental measurement with a power amplifier (PA) test bench and achieves an adjacent channel power ratio (ACPR) of less than –55 dBc. Results showed improvement in output power of PA versus given input power, and furthermore, the error vector magnitude (EVM) of less than 1 % was achieved when comparing of the signal after and before modification by the PSI technique.

APA, Harvard, Vancouver, ISO, and other styles

34

Forster, Edward C. "Digital audio broadcasting." IEE Review 38, no. 6 (1992): 216. http://dx.doi.org/10.1049/ir:19920087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Hakanen, Ernest A. "Digital audio broadcasting." Telecommunications Policy 15, no. 6 (1991): 491–96. http://dx.doi.org/10.1016/0308-5961(91)90003-t.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Hopkins, John W. "Digital audio broadcasting system." Journal of the Acoustical Society of America 101, no. 6 (1997): 3233. http://dx.doi.org/10.1121/1.419378.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

McNally, G. "Digital audio in broadcasting." IEEE ASSP Magazine 2, no. 4 (1985): 26–44. http://dx.doi.org/10.1109/massp.1985.1163754.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Jurgen, R. K. "Broadcasting with digital audio." IEEE Spectrum 33, no. 3 (1996): 52–59. http://dx.doi.org/10.1109/6.485773.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Price, Henry. "CD by radio: digital audio broadcasting." IEE Review 38, no. 4 (1992): 131. http://dx.doi.org/10.1049/ir:19920052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Jeong-Ki Min and Hyoung-Kyu Song. "Frequency synchronization for digital audio broadcasting." IEEE Transactions on Consumer Electronics 49, no. 2 (2003): 290–95. http://dx.doi.org/10.1109/tce.2003.1209516.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Sharma, M. K. "Digital Audio Broadcasting through INSAT Satellite." IETE Technical Review 13, no. 1 (1996): 25–27. http://dx.doi.org/10.1080/02564602.1996.11416572.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Hashimoto, Kazuhiko, and Masaru Nomura. "Recent Technologies of Digital Broadcasting System. Broadcasting Service Image. Digital Video & Audio Broadcasting Service." Journal of the Institute of Television Engineers of Japan 47, no. 4 (1993): 499–503. http://dx.doi.org/10.3169/itej1978.47.499.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Irawan, Bambang, and Dandung Trihatmojo. "Decentralized Trusted Storage of Audio-Video Log Data Based on Blockchain Technology and IPFS." International Journal of Science, Technology & Management 5, no. 2 (2024): 473–84. http://dx.doi.org/10.46729/ijstm.v5i2.1084.

Full text

Abstract:

The development of communication and information technology has affected the world of television broadcasting in Indonesia. With the emergence of a new phenomenon, the convergence of digital media industry. The migration of analogue to digital television broadcasting has impacted various industries related to broadcasting. Especially for the sustainability of the television broadcasting community in the country. Station Tv x is one of the television communities, on the other hand the media industry has challenges in managing storage media consisting of audio and video data that has a large capacity. Audio video logs are needed as information on recording audio video files. Blockchain-based Interplenary File System (IPFS) technology is expected to be one of the alternatives that can be applied in the world of broadcasting, storage media and audio video file data distribution methods, data library security and data flexibility are one of the challenges faced in the television broadcasting industry. The purpose of this research is as an effort to decentralise audio video data in distributed storage media to be more optimal and secure. The results of this research can be used to distribute audio video data files in the data library at tv station x.

APA, Harvard, Vancouver, ISO, and other styles

44

Faller, C., Biing-Hwang Juang, P. Kroon, Hui-Ling Lou, S. A. Ramprashad, and C. E. W. Sundberg. "Technical advances in digital audio radio broadcasting." Proceedings of the IEEE 90, no. 8 (2002): 1303–33. http://dx.doi.org/10.1109/jproc.2002.800718.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Lahdili, H., H. Najaf-Zadeh, and L. Thibault. "Statistical Multiplexing for Digital Audio Broadcasting Applications." IEEE Transactions on Broadcasting 56, no. 1 (2010): 19–27. http://dx.doi.org/10.1109/tbc.2009.2039829.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Date, Takao, Makoto Sasaki, Hiroshi Miura, et al. "Digital Terrestrial Broadcasting. 3. The Outline of the Digital Terrestrial Audio Broadcasting Prove Experiment." Journal of the Institute of Image Information and Television Engineers 53, no. 11 (1999): 1467–71. http://dx.doi.org/10.3169/itej.53.1467.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Khamidov, Khasan Abdumutalovich. "RESEARCH AND CALCULATION OF THE ZONE OF CONFIDENT SIGNAL RECEPTION OF DIGITAL SOUND RADIO BROADCASTING TRANSMITTER'S SIGNAL." DIGITAL TRANSFORMATION AND ARTIFICIAL INTELLIGENCE 2, no. 634 (2024): 250–57. https://doi.org/10.5281/zenodo.14744352.

Full text

Abstract:

The article examines current trends in the development of digital radio broadcasting, including the transition from analog to digital signals, the development of standards and their application in various countries. Special attention is paid to the relevance of research and calculation of digital broadcasting coverage areas, which is crucial for optimizing infrastructure, uniform access to information and ensuring high-quality services. Examples of successful implementation of digital radio broadcasting technologies in developed countries, including Norway, Great Britain, Germany, and Switzerland, are given. A generalized algorithm for calculating the safe reception zone of a digital audio broadcasting transmitter is proposed.

APA, Harvard, Vancouver, ISO, and other styles

48

Varlamov, O. V. "DRM DIGITAL BROADCASTING SYSTEM AUDIO PATH QUALITATIVE CHARACTERISTICS." SYNCHROINFO JOURNAL 8, no. 4 (2022): 2–8. http://dx.doi.org/10.36724/2664-066x-2022-8-4-2-8.

Full text

Abstract:

The Digital Radio Mondiale (DRM) digital broadcasting system is the only ITU-approved digital broadcasting system for the LF, MF and HF bands. Numerous theoretical and field studies, as well as operating experience over the past 20 years, have allowed a good study of digital broadcasting networks organization according to this standard. However, some of the issues related to the audio path formal characteristics were not considered. The article discusses the audio coders used in the DRM system and the available data rates in various immunity modes. A set of test signals for instrumental measurements and listening has been developed. The results of experimental measurements for various data rates are presented. It is shown that the range of modulating frequencies in 7 modes of immunity is not narrower than for FM transmitters. In another 5 modes of noise immunity, the range of modulating frequencies is narrower than for FM transmitters, but wider than for AM transmitters. It is confirmed that at data rates of more than 16.5 kbps, the DRM transmitter signal quality becomes no worse than AM signal transmitter quality. Above 24 kbps, the DRM transmitter signal quality becomes comparable to that of an FM transmitter.

APA, Harvard, Vancouver, ISO, and other styles

49

Lin, X., L. Hanzo, R. Steele, and W. T. Webb. "Subband-multipulse digital audio broadcasting for mobile receivers." IEEE Transactions on Broadcasting 39, no. 4 (1993): 373–82. http://dx.doi.org/10.1109/11.259597.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Rau, M. C., L. D. Claudy, and S. Salek. "Terrestrial coverage considerations for digital audio broadcasting systems." IEEE Transactions on Broadcasting 36, no. 4 (1990): 275–83. http://dx.doi.org/10.1109/11.64478.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Digital Audio Broadcasting (DAB)'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles