High resolution moving targets imaging algorithm of FMCW SAR

Jing He; Gewei Tan; Kun Ma; Can Liu

doi:10.1117/12.3029179

6 May 2024 High resolution moving targets imaging algorithm of FMCW SAR

Jing He, Gewei Tan, Kun Ma, Can Liu

Proceedings Volume 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024); 131073M (2024) https://doi.org/10.1117/12.3029179
Event: Fourth International Conference on Sensors and Information Technology (ICSI 2024), 2024, Xiamen, China

Abstract

In this paper, the problem of parameter estimation and imaging of ground accelerated moving targets with frequency modulated continuous wave synthetic aperture radar (FMCW SAR) is studied. First, a fourth-order moving target echo model is established in FMCW SAR system, and the coefficient estimation of the azimuth signal based on adaptive local polynomial Fourier transform (ALPFT) is proposed. Secondly, the range migration term is corrected by generalized Keystone transform and Hough transform. Finally, by compensating the high-order Doppler phase and azimuth resampling the edge moving targets, all moving targets in the scene can be focused well. Simulation results verify the feasibility and effectiveness of the proposed method.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jing He, Gewei Tan, Kun Ma, and Can Liu "High resolution moving targets imaging algorithm of FMCW SAR", Proc. SPIE 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024), 131073M (6 May 2024); https://doi.org/10.1117/12.3029179

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