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Combined influence of channel and amplifier on multicarrier modulated radar signals

Publication Type : Conference Paper

Publisher : Procedia Computer Science

Source : Procedia Computer Science, Elsevier B.V., Volume 143, p.30-38 (2018)

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Keywords : Additive White Gaussian noise, Channel model, Fading channels, FBMC, Gaussian noise (electronic), Microwave tubes, Multicarrier modulation, Multicarrier technique, Nonlinear characteristics, Orthogonal frequency division multiplexing, Power amplifiers, Radar systems, Radar waveforms, Rayleigh fading, Solid state power amplifier, Traveling wave tube amplifiers, Traveling wave tubes, White noise

Campus : Coimbatore

School : Department of Education, School of Engineering

Center : Computational Engineering and Networking

Department : Electronics and Communication

Year : 2018

Abstract : In recent times, the domain of high speed information transfer has seen a quantum jump in performance with the advent of novel RADAR techniques. The spectrum available for programmable, pulsed radar systems is limited; hence, devising different multicarrier techniques to meet the demands for high data throughput becomes imperative. At a radar base station the amplifiers placed in the RF front end are devices that consume most of the power. It creates distortions in the transmitted signal due to its non-linear characteristics. Here, the performance of OFDM and FBMC multicarrier signals transmitted over additive white Gaussian noise (AWGN), Rayleigh fading and Rician fading channels along with the influence of the high power amplifier (HPA) are analyzed. The different types of amplifier models used for comparison are of the solid state power amplifier (SSPA) and traveling wave tube amplifier (TWTA) type. The results are compared for evident degradation in the quality metrics such as spectral efficiency and PAPR. © 2018 The Authors. Published by Elsevier B.V.

Cite this Research Publication : G. Priyanga, Sundaram, G. A. Shanmugha, Dr. Soman K. P., and K.K., S., “Combined influence of channel and amplifier on multicarrier modulated radar signals”, in Procedia Computer Science, 2018, vol. 143, pp. 30-38.

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