Receiver Structures for Phase Modulated FMCW Radars

Two receiver structures of phase modulated FMCW signals with low ADC sampling requirement are investigated, namely the matched filter of the dechirped signal and the group delay filter approach. The sensing performance of the investigated receiver strategies are analyzed in application to BPSK modul...

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Bibliographic Details
Published in2022 16th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors Kumbul, Utku, Petrov, Nikita, Vaucher, Cicero S., Yarovoy, Alexander
Format Conference Proceeding
LanguageEnglish
Published European Association for Antennas and Propagation 27.03.2022
Subjects
Bandwidth
Chirp
Filter bank
Filter banks
Group delay filter
Joint sensing and communication
Matched filters
Modulated chirps
Phase modulation
Phase-coded FMCW
Radar
Receivers
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Summary:Two receiver structures of phase modulated FMCW signals with low ADC sampling requirement are investigated, namely the matched filter of the dechirped signal and the group delay filter approach. The sensing performance of the investigated receiver strategies are analyzed in application to BPSK modulated chirp. Numerical simulations demonstrate that both techniques provide comparable performance for low to moderate bandwidth of the modulation signal. Matched filter outperforms the group delay receiver for the modulation waveform with large bandwidth, hence with the price of larger computational complexity.
DOI:10.23919/EuCAP53622.2022.9769268