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Thematische Bibliographien / Software defined radio receiver / Zeitschriftenartikel

Zeitschriftenartikel zum Thema „Software defined radio receiver“

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Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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1

VULAVABETI, RAGHUNATH REDDY, und REDDY K. RAVINDRA. „SOFTWARE DEFINED RADIO BASED BEACON RECEIVER“. i-manager's Journal on Communication Engineering and Systems 8, Nr. 3 (2019): 13. http://dx.doi.org/10.26634/jcs.8.3.16779.

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2

Bagheri, R., A. Mirzaei, M. E. Heidari, S. Chehrazi, Minjae Lee, M. Mikhemar, W. K. Tang und A. A. Abidi. „Software-defined radio receiver: dream to reality“. IEEE Communications Magazine 44, Nr. 8 (August 2006): 111–18. http://dx.doi.org/10.1109/mcom.2006.1678118.

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3

Magnuski, Mirosław, Maciej Surma und Dariusz Wójcik. „Broadband Input Block of Radio Receiver for Software-Defined Radio Devices“. International Journal of Electronics and Telecommunications 60, Nr. 3 (28.10.2014): 233–38. http://dx.doi.org/10.2478/eletel-2014-0029.

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Abstract In the paper a cost-effective input block of the SDR receiver for 0.9 — 2.4 GHz frequency band built of capacitive-tuned selective amplifier and broadband Vivaldi antenna is presented. The applied selective amplifier consists of three identical sections of tunable filters and two stages of monolithic broadband amplifiers. The single filter section proposed by the authors, due to its ability to absorb parasitic inductances of varicap diodes, simplifies usage of encapsulated varicap diodes in design of tunable in broad band selective filters dedicated to input stages of the receivers. Moreover, proposed filter section has small variation of in-band insertion loss in comparison to varicap-tuned filters built of coupled transmission lines which are commonly applied in input blocks of the microwave receivers. The described selective amplifier could be easily integrated on a single substrate with the Vivaldi antenna which is a cost effective way of fabrication of the tunable in broad band input block of a receiver that has desired gain, selectivity and directivity of the antenna.

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4

Jin Li, Yijun Luo und Mao Tian. „FM Stereo Receiver Based on Software-Defined Radio“. International Journal of Digital Content Technology and its Applications 6, Nr. 1 (31.01.2012): 75–81. http://dx.doi.org/10.4156/jdcta.vol6.issue1.10.

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5

Kumarin, A. A., und I. A. Kudryavtsev. „Software-defined Radio GNSS Receiver Signal Tracking Methods“. IOP Conference Series: Materials Science and Engineering 984 (28.11.2020): 012020. http://dx.doi.org/10.1088/1757-899x/984/1/012020.

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6

Abidi, Asad A. „The Path to the Software-Defined Radio Receiver“. IEEE Journal of Solid-State Circuits 42, Nr. 5 (Mai 2007): 954–66. http://dx.doi.org/10.1109/jssc.2007.894307.

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7

Sheybani, Ehsan, und Giti Javidi. „Integrating Software Defined Radio with USRP“. International Journal of Interdisciplinary Telecommunications and Networking 9, Nr. 3 (Juli 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 Ubuntu OS. With proper parameters and sinks the authors were able to tune into the radio signal, record the signal and extract the in-phase (I) and quadrature phase (Q) data and plot the phase and magnitude of the signal. Using the terminal along with proper MATLAB and Octave code, they were able to read the I/Q data and look at the Fast Fourier Transform (FFT) plot along with the I/Q data. With the proper equations, you could determine not only the direction of arrival, but one would also be able to calculate the distance from the receiver to the exact location where the signal is being transmitted. The purpose of doing this experiment was to gain experience in signal processing and receive hands on experience with the USRP and potentially add a tracking system to the authors' model for further experiments.

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Taylor, Fred, Evan Gattis, Lucca Trapani, Dennis Akos, Sherman Lo, Todd Walter und Yu-Hsuan Chen. „Software Defined Radio for GNSS Radio Frequency Interference Localization“. Sensors 24, Nr. 1 (22.12.2023): 72. http://dx.doi.org/10.3390/s24010072.

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The use of radio direction finding techniques in order to identify and reject harmful interference has been a topic of discussion both past and present for signals in the GNSS bands. Advances in commercial off-the-shelf radio hardware have led to the development of new low-cost, compact, phase coherent receiver platforms such as the KrakenSDR from KrakenRF whose testing and characterization will be the primary focus of this paper. Although not specifically designed for GNSSs, the capabilities of this platform are well aligned with the needs of GNSSs. Testing results from both benchtop and in the field will be displayed which verify the KrakenSDR’s phase coherence and angle of arrival estimates to array dependent resolution bounds. Additionally, other outputs from the KrakenSDR such as received signal strength indicators and the angle of arrival confidence values show strong connections to angle of arrival estimate quality. Within this work the testing that will be primarily presented is at 900 MHz, with results presented from a government-sponsored event where the Kraken was tested at 1575.42 MHz. Finally, a discussion of calibration of active antenna arrays for angle of arrival is included as the introduction of active antenna elements used in GNSS signal collection can influence angle of arrival estimation.

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Mohammed, Asmaa, Heba Asem, Hatem Yousry und Abdelhalim Zekry. „Performance Evaluation for GSM Receiver Using Software Defined Radio“. International Journal of Engineering Trends and Technology 30, Nr. 7 (25.12.2015): 333–40. http://dx.doi.org/10.14445/22315381/ijett-v30p262.

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10

Rivet, F., Y. Deval, J. B. Begueret, D. Dallet, P. Cathelin und D. Belot. „A Disruptive Receiver Architecture Dedicated to Software-Defined Radio“. IEEE Transactions on Circuits and Systems II: Express Briefs 55, Nr. 4 (April 2008): 344–48. http://dx.doi.org/10.1109/tcsii.2008.919512.

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11

Hurskainen, Heikki, Jussi Raasakka, Tapani Ahonen und Jari Nurmi. „Multicore Software-Defined Radio Architecture for GNSS Receiver Signal Processing“. EURASIP Journal on Embedded Systems 2009 (2009): 1–10. http://dx.doi.org/10.1155/2009/543720.

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12

Cheffena, Michael, und Lars Erling Braten. „Low-Cost Digital Beacon Receiver Based on Software-Defined Radio“. IEEE Antennas and Propagation Magazine 53, Nr. 1 (Februar 2011): 50–55. http://dx.doi.org/10.1109/map.2011.5773567.

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13

Wang, Hong-mei, Jae-hyung Kim, Fa-guang Wang, Sang-hyuk Lee und Xue-song Wang. „Design of BPS digital frontend for software defined radio receiver“. Journal of Central South University 22, Nr. 12 (Dezember 2015): 4709–16. http://dx.doi.org/10.1007/s11771-015-3022-8.

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14

BOIKO, JULIY, ILYA PYATIN und IGOR PARKHOMEY. „SIGNAL PROCESSING AND SYNCHRONIZATION TECHNIQUE IN SOFTWARE-DEFINED RADIO SYSTEMS WITH OFDM“. Herald of Khmelnytskyi National University. Technical sciences 307, Nr. 2 (02.05.2022): 123–32. http://dx.doi.org/10.31891/2307-5732-2022-307-2-123-132.

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

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Khudov, Hennadii, Oleksandr Kostianets, Oleksandr Kovalenko, Oleh Maslenko und Yuriy Solomonenko. „Using Software-Defined radio receivers for determining the coordinates of low-visible aerial objects“. Eastern-European Journal of Enterprise Technologies 4, Nr. 9 (124) (31.08.2023): 61–73. http://dx.doi.org/10.15587/1729-4061.2023.286466.

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The object of this study is the process of determining the coordinates of low-visible aerial objects. The main hypothesis of the research assumed that the signals emitted by airborne systems of airborne objects that are not visible to radar stations have a greater power than the signal reflected from the airborne object. This, in turn, could improve the signal/noise ratio and, accordingly, the accuracy of determining the coordinates of low-visible aerial objects. It is suggested to use Software-Defined Radio receivers to receive such signals emitted by on-board systems of low-visible aerial objects. It was established that the main sources of signals for Software-Defined Radio receivers are signals of command, telemetry, target channels, manual control channels, and satellite navigation. It was established that an additional distinguishing feature when determining the coordinates of low-visible aerial objects is the uniqueness of their spectra and spectrograms. The method of determining the coordinates of low-visible aerial objects when using Software-Defined Radio receivers has been improved, which, unlike the known ones, involves: – the use as signals for Software-Defined Radio of signal receivers of on-board equipment of low-visible aerial objects; – the use of a priori coordinate values of a low-visible aerial object; – conducting additional spectral analysis of signals of on-board systems of low-visible aerial objects. The spectra and spectrograms of signals of on-board systems of aerial objects when using non-directional and directional antennas were experimentally determined. The experimental studies confirm the possibility of using the Software-Defined Radio receiver to receive signals from airborne equipment and improve the signal-to-noise ratio. The accuracy of determining the coordinates of aerial objects when using Software-Defined Radio receivers was evaluated. A decrease in the error of determining plane coordinates by the Software-Defined Radio system of receivers compared to the accuracy of determining coordinates by the P-19 MA radar station was established by an average of 1.88–2.47 times, depending on the distance to the aerial object

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Pető, Tamás, und Rudolf Seller. „Quad channel software defined receiver for passive radar application“. Archives of Electrical Engineering 66, Nr. 1 (01.03.2017): 5–16. http://dx.doi.org/10.1515/aee-2017-0001.

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Abstract In recent times the growing utilization of the electromagnetic environment brings the passive radar researches more and more to the fore. For the utilization of the wide range of illuminators of opportunity the application of wideband radio receivers is required. At the same time the multichannel receiver structure has also critical importance in target direction finding and interference suppression. This paper presents the development of a multichannel software defined receiver specifically for passive radar applications. One of the relevant feature of the developed receiver platform is its up-to-date SoC (System on hip) based structure, which greatly enhance the integration and signal processing capacity of the system, all while keeping the costs low. The software defined operation of the discussed receiver system is demonstrated with using DVB-T (Digital Video Broadcast – Terrestrial) signal as illuminator of opportunity. During this demonstration the multichannel capabilities of the realized system are also tested with real data using direction finding and beamforming algorithms.

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Javidi, Giti, und Ehsan Sheybani. „Application of Digital Signal Processing in USRP Satellite Signal Detection“. International Journal of Interdisciplinary Telecommunications and Networking 9, Nr. 2 (April 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 this project was to design a GPS receiver that is capable of recording the L1 signal from a DirecTV satellite. The USRP is used a lot for research. This project consisted of more than just one method. We used GNU Radio Companion and Matlab/Simulink. GNU Radio is open source for building software defined radios. It is also known as GRC. While using GRC the USRP1 was the device used. This software has rapid development. It runs in Ubuntu, a Linux operating system. Within this software there are logic blocks. Each block consists of information to create a flow graph. The flow graph builds and generates the program. Simulink can be compared to GRC. They both have logic blocks that have to be connected to run. Simulink can be used to create a transmitter or a receiver for software radio development and signal processing. Software-defined radio can only be defined if its baseband operations can be completely defined by software. A SDR converts digital to analog signals. The USRP can also convert digital signals from a computer to Radio Frequency Signals (RF). This software is one way to communicate between hardware and software.

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18

Szlachetko, Bogusław, und Andrzej Lewandowski. „A Multichannel Receiver of the Experimental FM Based Passive Radar Using Software Defined Radio Technology“. International Journal of Electronics and Telecommunications 58, Nr. 4 (01.12.2012): 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 sampling were presented. We also propose the solution of the problem of the alignment of the data streams being sent from USRP devices via USB to the PC host.

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Ivanov, Andrey, Igor Ognev, Elizaveta Nikitina und Lev Merkulov. „Application of SDR (Software Defined Radio) technology for recovery of signals of side electromagnetic radiation of video tract“. Digital technology security, Nr. 4 (27.12.2021): 72–90. http://dx.doi.org/10.17212/2782-2230-2021-4-72-90.

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

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Jiang, Yong, Wen Xu und Cyprian Grassmann. „Implementing a DVB-T/H Receiver on a Software-Defined Radio Platform“. International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/937848.

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Digital multimedia broadcasting is available in more and more countries with various forms. One of the most successful forms is Digital Video Broadcasting for Terrestrial (DVB-T), which has been deployed in most countries of the world for years. In order to bring the digital multimedia broadcasting services to battery-powered handheld receivers in a mobile environment, Digital Video Broadcasting for Handheld (DVB-H) has been formally adopted by ETSI. More advanced and complex digital multimedia broadcasting systems are under development, for example, the next generation of DVB-T, a.k.a. DVB-T2. Current commercial DVB-T/H receivers are usually built upon dedicated application-specific integrated circuits (ASICs). However, ASICs are not flexible for incoming evolved standards and less overall-area efficient since they cannot be efficiently reused and shared among different radio standards, when we integrate a DVB-T/H receiver into a mobile phone. This paper presents an example implementation of a DVB-T/H receiver on the prototype of Infineon Technologies' Software-Defined Radio (SDR) platform called MuSIC (Multiple SIMD Cores), which is a DSP-centered and accelerator-assisted architecture and aims at battery-powered mass-market handheld terminals.

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Nguyen, Hoai-Nam, D. M. A. N. B. Dissanayake, Seok-Kyun Han und Sang-Gug Lee. „A High-linearity Wideband Discrete-time Receiver for Software-defined Radio“. JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE 18, Nr. 1 (28.02.2018): 29–35. http://dx.doi.org/10.5573/jsts.2018.18.1.029.

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22

Xinyu Xu, R. G. Bosisio und Ke Wu. „Analysis and implementation of six-port software-defined radio receiver platform“. IEEE Transactions on Microwave Theory and Techniques 54, Nr. 7 (Juli 2006): 2937–43. http://dx.doi.org/10.1109/tmtt.2006.877449.

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23

Mirzaei, A., S. Chehrazi, R. Bagheri und A. A. Abidi. „A Second-Order Antialiasing Prefilter for a Software-Defined Radio Receiver“. IEEE Transactions on Circuits and Systems I: Regular Papers 56, Nr. 7 (Juli 2009): 1513–24. http://dx.doi.org/10.1109/tcsi.2008.2007062.

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24

Ru, Zhiyu, Eric A. M. Klumperink und Bram Nauta. „Discrete-Time Mixing Receiver Architecture for RF-Sampling Software-Defined Radio“. IEEE Journal of Solid-State Circuits 45, Nr. 9 (September 2010): 1732–45. http://dx.doi.org/10.1109/jssc.2010.2053860.

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25

Peters, Edwin Gerardus Wilhelmus, und Craig R. Benson. „A Doppler Correcting Software Defined Radio Receiver Design for Satellite Communications“. IEEE Aerospace and Electronic Systems Magazine 35, Nr. 2 (01.02.2020): 38–48. http://dx.doi.org/10.1109/maes.2019.2960952.

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26

Li, Zuokun, Dongdong Zhang, Qichao Zhu, Henghao Gu, Shuai Huang, Yi Kuang und Yingwen Liu. „Application Research on DOA Estimation Based on Software-Defined Radio Receiver“. Journal of Physics: Conference Series 1617 (August 2020): 012047. http://dx.doi.org/10.1088/1742-6596/1617/1/012047.

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Svensson, Christer. „The blocker challenge when implementing software defined radio receiver RF frontends“. Analog Integrated Circuits and Signal Processing 64, Nr. 2 (25.12.2009): 81–89. http://dx.doi.org/10.1007/s10470-009-9446-z.

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28

Ahmed, Reem Hashim, und Ekhlas Kadhum Hamza. „Designing a Secure Software-Defined Radio Transceiver using the Logistic Map“. Journal of Engineering 27, Nr. 6 (01.06.2021): 59–72. http://dx.doi.org/10.31026/j.eng.2021.06.05.

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The need to exchange large amounts of real-time data is constantly increasing in wireless communication. While traditional radio transceivers are not cost-effective and their components should be integrated, software-defined radio (SDR) ones have opened up a new class of wireless technologies with high security. This study aims to design an SDR transceiver was built using one type of modulation, which is 16 QAM, and adding a security subsystem using one type of chaos map, which is a logistic map, because it is a very simple nonlinear dynamical equations that generate a random key and EXCLUSIVE OR with the originally transmitted data to protect data through the transmission. At the receiver, the data will be recovered using the same key, the received data is the same at the sender, so this result shows that the transceiver work normally and calculates the BER at the end each time the SNR changed. Our results indicate that the designed transmitter and receiver perform as usual and finally calculate the bit error rate when the signal to noise ratio is changed. The evaluation of BER indicates that simulated values are smaller than theoretical ones obtained using the BER tool. when SNR is equivalent to 7 dB, the theoretical and simulated BER obtained is 0.01695 and 0.00199, respectively. Designing soft defined radio transceiver using MATLAB R 2011a and system generator ISE14.1/SIMULINK.

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Felski, Andrzej, und Tomasz Kowalik. „SOFTWARE DEFINED RADIO AND OPEN SOFTWARE AS A CRITICAL THREAT FOR UNMANNED OBJECTS“. Aviation and Security Issues 3, Nr. 1 (30.06.2023): 255–64. http://dx.doi.org/10.55676/asi.v3i1.51.

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Implementation of the Global Navigation Satellite Systems into almost all aspects of life causes specific, new troubles in the form of jamming and spoofing. The origin of the problem comes from the fact that the power of received signals are weak, and format and modulation of the signals are publicly known. If so, it seems to be easy to transmit falsified data to the receiver. However, in the opinion of some specialists the idea to generate false signals with GNSS structure seems to be very complicated. In this paper will show that in fact, this can be conducted with the use of cheap and widely accessible tools, without demanding any extraordinary skills or great funds. If so, this threat gathers a new meaning. The described experiment was performed within the framework of the student’s thesis on major navigation with cheap software defined radio and open sources software, accessible via the Internet.

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Teronpi, Khushboo, Kandarpa Kumar Sarma, Aradhana Misra und Manasjyoti Bhuyan. „DTW based Modulation Detection- Verification using Software Defined Radio“. WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (10.08.2021): 133–38. http://dx.doi.org/10.37394/23204.2021.20.18.

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

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Kong, Xiangming, Deying Zhang und Mohin Ahmed. „A Software-Defined Radio System for Intravehicular Wireless Sensor Networks“. International Journal of Digital Multimedia Broadcasting 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/934896.

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An intra-vehicular wireless sensor network is designed and implemented on a software-defined radio system. IUWB signal is chosen to carry the data packets. The MAC layer of the system follows the specification of the IEEE802.15.4 standard. The transceiver design, especially the receiver design, is detailed in the paper. The system design is validated through lab test setup.

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Forero, David, Segundo Esteban und Óscar Rodríguez-Polo. „Framework to Emulate Spacecraft Orbital Positioning Using GNSS Hardware in the Loop“. Sensors 23, Nr. 2 (12.01.2023): 885. http://dx.doi.org/10.3390/s23020885.

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The paper presents a framework to emulate spacecraft orbits using GNSS hardware in the loop that enables the evaluation of new orbital positioning algorithms. The framework software generates the spacecraft orbit and the GNSS signals, including the most common perturbations. These signals are modulated and transmitted by a software-defined radio and received by a commercial GPS receiver. The system is validated using a test orbit, where the GPS receiver accurately determines the spacecraft positions. Moreover, using raw data provided by the receiver, the spacecraft positions have also been determined by software for a low earth orbit, in which civil GPS receivers do not work.

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de la Morena-Álvarez-Palencia, Cristina, Mateo Burgos-Garcia und Javier Gismero-Menoyo. „MINIATURIZED 0.3-6 GHZ LTCC SIX-PORT RECEIVER FOR SOFTWARE DEFINED RADIO“. Progress In Electromagnetics Research 142 (2013): 591–613. http://dx.doi.org/10.2528/pier13070806.

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Jia, Yaoyao, Byunghun Lee, Fanpeng Kong, Zhaoping Zeng, Mark Connolly, Babak Mahmoudi und Maysam Ghovanloo. „A Software-Defined Radio Receiver for Wireless Recording From Freely Behaving Animals“. IEEE Transactions on Biomedical Circuits and Systems 13, Nr. 6 (Dezember 2019): 1645–54. http://dx.doi.org/10.1109/tbcas.2019.2949233.

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Meier, John, Redmond Kelley, Bradley M. Isom, Mark Yeary und Robert D. Palmer. „Leveraging Software-Defined Radio Techniques in Multichannel Digital Weather Radar Receiver Design“. IEEE Transactions on Instrumentation and Measurement 61, Nr. 6 (Juni 2012): 1571–82. http://dx.doi.org/10.1109/tim.2011.2178670.

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36

Ru, Z., N. A. Moseley, E. Klumperink und B. Nauta. „Digitally Enhanced Software-Defined Radio Receiver Robust to Out-of-Band Interference“. IEEE Journal of Solid-State Circuits 44, Nr. 12 (Dezember 2009): 3359–75. http://dx.doi.org/10.1109/jssc.2009.2032272.

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37

Chamaillard, Baptiste, Maxime Lastera und Damien Roque. „A flexible VHF-band aeronautical datalink receiver based on software defined radio“. IEEE Aerospace and Electronic Systems Magazine 33, Nr. 1 (Januar 2018): 58–61. http://dx.doi.org/10.1109/maes.2018.170131.

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38

Seal, Ryan, und Julio Urbina. „GnuRadar: An Open-Source Software-Defined Radio Receiver Platform for Radar Applications“. IEEE Aerospace and Electronic Systems Magazine 35, Nr. 2 (01.02.2020): 30–36. http://dx.doi.org/10.1109/maes.2019.2961215.

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39

Lin, Kuan-Ting, Tao Wang und Shey-Shi Lu. „A 0.8–6 GHz Wideband Receiver Front-End for Software-Defined Radio“. Active and Passive Electronic Components 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/725075.

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40

Park, Kwi Woo, Min Joon Lee und Chansik Park. „A Design of Anti-jamming Method Based on Spectrum Sensing and GNSS Software Defined Radio“. E3S Web of Conferences 94 (2019): 03004. http://dx.doi.org/10.1051/e3sconf/20199403004.

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This paper presents result of new approach for anti-jamming using a method based on cognitive radio. To detect and get center frequency and bandwidth of jamming, a spectrum sensing based on multi-channel energy detector is implemented on the SDR. The SDR and a universal software radio peripheral is used to support real-time channel reconfiguration. And detected center frequency and bandwidth is used to select LO frequency to avoid jamming and receive GNSS signal. Then the receiver is reconfigured by the selected LO frequency. To verify the feasibility of the proposed anti-jamming process, position, carrier to noise ratio of each channel are measured using a test scenario that is consist of GPS and Beidou with a CW jamming. As a results, by switching of LO frequency, GNSS signal that is not affected by jamming can be received with the same performance as non-jamming.

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41

Blech, M. D., A. T. Ott, P. Neumeier, M. Möller und T. F. Eibert. „A reconfigurable software defined ultra-wideband impulse radio transceiver“. Advances in Radio Science 8 (30.09.2010): 67–73. http://dx.doi.org/10.5194/ars-8-67-2010.

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Abstract. An ultra-wideband (UWB) software defined radio (SDR) implementation is presented. The developed impulse radio (IR) transceiver employs first order bandpass (BP) sampling at a conversion frequency which is four times the channel bandwidth. The subsampling architecture directly provides the RF signal avoiding any non-ideal mixer stages and reduces the requirements of digital signal processing implemented in a field programmable gate array (FPGA). The transmitter consists basically of a multi-Nyquist digital to analog converter (DAC), whereas the implemented matched filter (MF) receiver prototype employs a standard digitizing oscilloscope. This design can be adaptively reconfigured in terms of modulation, data rate, and channel equalization. The reconfigurable design is used for an extensive performance analysis of the quadrature phase shift keying (QPSK) modulation scheme investigating the influence of different antennas, amplifiers, narrowband interferers as well as different equalizer lengths. Even for distances up to 7 m in a multipath environment robust communication was achieved.

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42

Moon, Seong-Mo, Dong-Hoon Park, Jong-Won Yu und Moon-Que Lee. „Dual-Band Six-Port Direct Conversion Receiver with I/Q Mismatch Calibration Scheme for Software Defined Radio“. Journal of Korean Institute of Electromagnetic Engineering and Science 21, Nr. 6 (30.06.2010): 651–59. http://dx.doi.org/10.5515/kjkiees.2010.21.6.651.

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43

Hakim, Nurul Fahmi Arief, Silmi Ath Thahirah Al Azhima und Mariya Al Qibtiya. „Compact Coplanar Waveguide Antenna Using Arm Patch for Software Defined Radio“. Jurnal Elektronika dan Telekomunikasi 23, Nr. 1 (31.08.2023): 29. http://dx.doi.org/10.55981/jet.524.

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This article proposes a compact coplanar waveguide (CPW) antenna with a semicircular patch and patch arm above the feed line. The method used in this antenna research is experimental, with antenna parameter optimization, fabrication, and measurement steps. The antenna was 40 mm × 46 mm × 0.8 mm and was printed on an FR4 substrate. Antenna optimization was carried out with CST Studio Suite to obtain optimal results. Based on return loss measurement results, the proposed antenna has an operational frequency of 2 GHz–7 GHz. The antenna arm has a significant effect on the operational frequency of the antenna, as proven by a parameter study of the antenna arm. Parametric studies were carried out on the antenna by investigating the influence of geometric parameters on the frequency characteristics. Optimization results were printed then measured by a Vector Network Analyzer (VNA) and a spectrum analyzer. The fabricated CPW antenna has a wider operating frequency than the simulation. An omnidirectional radiation pattern was observed at 2 GHz–4 GHz. The antenna has been used as a transmitter and receiver at 2.4 GHz, 3 GHz, and 4 GHz. The antenna is able to receive the signal emitted from the signal generator.

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44

Murakami, Keishi, Noriharu Suematsu, Koji Tsutsumi, Gakushi Kanazawa, Tomotsugu Sekine, Hiroshi Kubo und Yoji Isota. „0.8-5.2GHz Broad-Band SiGe-MMIC Quadrature Mixer for Software Defined Radio Receiver“. IEEJ Transactions on Electronics, Information and Systems 126, Nr. 9 (2006): 1093–100. http://dx.doi.org/10.1541/ieejeiss.126.1093.

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45

Kwon, Goo-rak, June-sok Lee, Jae-do Jin und Sung-jea Ko. „Noise-Robust Modulation Identification Method for Adaptive Receiver Based on Software Defined Radio“. IEEE Transactions on Consumer Electronics 53, Nr. 3 (August 2007): 1211–16. http://dx.doi.org/10.1109/tce.2007.4341606.

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46

Vießmann, A., A. Waadt, C. Spiegel, C. Kocks, A. Burnic, P. Jung, G. H. Bruck, J. Kim, J. Lim und H. W. Lee. „Formel-Kapitel 1 Abschnitt 1A software defined radio realisation of DVB-T2 receiver“. Electronics Letters 45, Nr. 24 (2009): 1253. http://dx.doi.org/10.1049/el.2009.2258.

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47

Puricer, Kovar und Barta. „Modernized Solar Radio Spectrograph in the L Band Based on Software Defined Radio“. Electronics 8, Nr. 8 (03.08.2019): 861. http://dx.doi.org/10.3390/electronics8080861.

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The paper presents the concept, implementation, and test operation of a modernized solar radio spectrograph for an investigation of the solar emission and solar bursts in radio frequency bands. Besides having a strong diagnostic significance for studying the flare energy release, the solar radio bursts can also cause strong interference for radio communication and navigation systems. The current spectrograph for the Ondrejov observatory (Astronomical Institute of Czech Academy of Sciences) was modernized by using a direct-conversion receiver connected to a field-programmable gate array (FPGA) for the fast Fourier transform (FFT) spectrum estimation and put into the test operation. The higher time and frequency resolution and lower noise in comparison with the existing analog instrument were reached by the implementation of the latest optimal signal processing methods. To reduce the costs for such modernization, the operating frequency range was divided into four sub-bands of bandwidth 250 MHz, which brings another benefit of greater scalability. The first observations obtained by the new spectrograph and their comparison with the analog device are presented in the paper with future steps to put the spectrograph into the regular operation.

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48

Panda, Amiya Ranjan, Debahuti Mishra und Hare Krishna Ratha. „A Software Defined Radio based UHF Digital Ground Receiver System for Flying Object using LabVIEW“. Defence Science Journal 67, Nr. 3 (25.04.2017): 291. http://dx.doi.org/10.14429/dsj.67.10365.

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This study demonstrates the design and implementation of a software defined radio based digital ground receiver system using LabVIEW. In flight testing centre, command transmission system is used to transmit specific commands to execute some operation inside the flight vehicle. One ground receiver system is needed to monitor the transmitted command and monitor the presence of the command in air. The newly implemented ground receiver system consists of FPGA, RTOS and general processing unit. The analog to digital conversion and RF down conversions are carried out in high speed PCI extension for instrumentation express cards. The communication algorithms, digital down conversion are implemented in FPGAs. The communication system uses digital demodulation and decoding scheme and realised by NI PXI-7966R with Xilinx Virtex 5, SXT, FPGA. The performance of the receiver system has been analysed by linearity measurement of pre-amplifier Gain, Noise figure, frequency, power and also measurement of sensitivity. The results show successful implementation of the ground receiver system.

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Radu, Florin, Petru A. Cotfas, Marian Alexandru, Titus C. Bălan, Vlad Popescu und Daniel T. Cotfas. „Signals Intelligence System with Software-Defined Radio“. Applied Sciences 13, Nr. 8 (21.04.2023): 5199. http://dx.doi.org/10.3390/app13085199.

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In this paper, we present the implementation of a system that identifies the modulation of complex radio signals. This is realized using an artificial intelligence model developed, trained, and integrated with Microsoft Azure cloud. We consider that cloud-based platforms offer enough flexibility and processing power to use them instead of conventional computers for signal processing based on artificial intelligence. We tested the implementation using a software-defined radio platform developed in GNU Radio that generates and receives real modulated signals. This process ensures that the solution proposed is viable to be used in real signal processing systems. The results obtained show that for certain modulation types, the identification is performed with a high degree of success. The use of a cloud-based platform allows quick access to the system. The user is able to identify the signal modulation using only a laptop that has access to the internet.

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50

ABBAS, Yasir M. O., und Kenichi Asami. „Design of Software-Defined Radio-Based Adaptable Packet Communication System for Small Satellites“. Aerospace 8, Nr. 6 (04.06.2021): 159. http://dx.doi.org/10.3390/aerospace8060159.

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Software-defined radio (SDR) devices have made a massive contribution to communication systems by reducing the cost and development time for radio frequency (RF) designs. SDRs opened the gate to programmers and enabled them to increase the capabilities of these easily manipulated systems. The next step is to upgrade the reconfigurability into adaptability, which is the focus of this paper. This research contributes to improving SDR-based systems by designing an adaptable packet communication transmitter and receiver that can utilize the communication window of CubeSats and small satellites. According to the feedback from the receiver, the transmitter modifies the characteristics of the signal. Theoretically, the system can adopt many modes, but for simplicity and to prove the concept, here, the changes are limited to three data rates of the Gaussian minimum shift keying (GMSK) modulation scheme, i.e., 2400 bps GMSK, 4800 bps GMSK and 9600 bps GMSK, which are the most popular in amateur small satellites. The system program was developed using GNU Radio Companion (GRC) software and Python scripts. With the help of GRC software, the design was simulated and its behavior in simulated conditions observed. The transmitter packetizes the data into AX.25 packets and transmits them in patches. Between these patches, it sends signaling packets. The patch size is preselected. Alternatively, the receiver extracts the data and saves it in a dedicated file. It directly replies with a feedback message whenever it gets the signaling packets. Based on the content of the feedback message, the characteristics of the transmitted signal are altered. The packet rate and the actual useful data rate are measured and compared with the selected data rate, and the packet success rate of the system operating at a fixed data rate is also measured while simulating channel noise to achieve the desired Signal-to-Noise Ratio (SNR).

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