Rotorcraft-borne 3D forward-looking MIMO SAR autofocusing

Jiaying Ren; Jian Li; Lam H. Nguyen

doi:10.1117/12.2589176

12 April 2021 Rotorcraft-borne 3D forward-looking MIMO SAR autofocusing

Jiaying Ren, Jian Li, Lam H. Nguyen

Proceedings Volume 11742, Radar Sensor Technology XXV; 1174206 (2021) https://doi.org/10.1117/12.2589176
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

This paper considers the autofocusing problem for a rotorcraft-borne forward-looking multiple-input multipleoutput (MIMO) synthetic aperture radar (SAR) system. Autofocusing is critically important for forward-looking MIMO SAR imaging, since the radar position errors due to the limited precision of navigation systems can severely degrade the imaging quality. In this paper, we propose a novel autofocusing method to address the radar position errors, resulting from both translational and rotational motion errors, for forward-looking MIMO SAR imaging. The effectiveness and efficiency of the proposed autofocusing algorithm are demonstrated by using several numerical experiments.

Conference Presentation

Citation Download Citation

Jiaying Ren, Jian Li, and Lam H. Nguyen "Rotorcraft-borne 3D forward-looking MIMO SAR autofocusing", Proc. SPIE 11742, Radar Sensor Technology XXV, 1174206 (12 April 2021); https://doi.org/10.1117/12.2589176

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