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High Accuracy Multi-Antenna Ranging Algorithm and Performance Analysis for FMCW Radar | IEEE Journals & Magazine | IEEE Xplore

High Accuracy Multi-Antenna Ranging Algorithm and Performance Analysis for FMCW Radar


Abstract:

This paper categorizes existing single-antenna ranging algorithms for Frequency Modulated Continuous Wave (FMCW) radar based on the maximum likelihood principle into freq...Show More

Abstract:

This paper categorizes existing single-antenna ranging algorithms for Frequency Modulated Continuous Wave (FMCW) radar based on the maximum likelihood principle into frequency, phase, and coherent methods and extends them to cover multi-antenna regimes. A new frequency compensation beamforming algorithm for multi-antenna ranging is proposed, which can achieve micron-level ranging accuracy compared to multi-antenna ranging algorithms without frequency compensation. The paper also derives the Cramér-Rao Bounds (CRBs) for distance estimation of the single-antenna ranging algorithms and the multi-antenna ranging algorithms. Finally, simulation experiments verify the correctness of the CRBs derived in this paper. The proposed multi-antenna ranging algorithms achieve the theoretical CRBs in Root Mean Square Error (RMSE) and demonstrate higher ranging accuracy compared to their single-antenna counterparts.
Published in: IEEE Transactions on Radar Systems ( Volume: 1)
Page(s): 657 - 668
Date of Publication: 06 November 2023
Electronic ISSN: 2832-7357

References

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