Phase-Coded FMCW for Coherent MIMO Radar

The phase-coded linear-frequency-modulated continuous-wave (PC-FMCW) waveform with a low sampling processing strategy is studied for coherent multiple-input multiple-output (MIMO) radar. The PC-FMCW MIMO structure, which jointly uses both fast-time and slow-time coding, is proposed to reduce sidelob...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2023-06, Vol.71 (6), p.2721-2733
Main Authors: Kumbul, Utku, Petrov, Nikita, Vaucher, Cicero S., Yarovoy, Alexander
Format: Article
Language:English
Subjects:
Chirp
Codes
Continuous radiation
Doppler effect
Encoding
Linear frequency modulation (LFM)
MIMO communication
multiple-input multiple-output (MIMO)
phase-modulated chirps
Radar
radar signal processing
Receivers
Sampling
Sidelobe reduction
Sidelobes
Waveforms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The phase-coded linear-frequency-modulated continuous-wave (PC-FMCW) waveform with a low sampling processing strategy is studied for coherent multiple-input multiple-output (MIMO) radar. The PC-FMCW MIMO structure, which jointly uses both fast-time and slow-time coding, is proposed to reduce sidelobe levels while preserving high range resolution, unambiguous velocity, good Doppler tolerance, and low sampling needs. The sensing performance and practical aspects of the introduced PC-FMCW MIMO structure are evaluated theoretically and verified experimentally. The numerical simulations and experiments demonstrate that the proposed MIMO keeps the advantages of the linear-frequency-modulated continuous-wave (LFMCW) waveform, including computational efficiency and low sampling demands, while having the ability to provide low sidelobe levels with simultaneous transmission.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2022.3228950