Bistatic-ISAR cross-range scaling and distortion correction

Likang Deng; Shuanghui Zhang; Yongxiang Liu

doi:10.1117/12.2589513

20 January 2021 Bistatic-ISAR cross-range scaling and distortion correction

Likang Deng, Shuanghui Zhang, Yongxiang Liu

Proceedings Volume 11719, Twelfth International Conference on Signal Processing Systems; 117190Y (2021) https://doi.org/10.1117/12.2589513
Event: Twelfth International Conference on Signal Processing Systems, 2020, Shanghai, China

Abstract

For bistatic inverse synthetic aperture radar (Bi-ISAR) cross-range scaling (CRS), it needs to estimate the effective rotational velocity (ERV) and correct linear-geometry distortion at the same time. In this paper, the effective rotational velocity (ERV), rotational center (RC) and ratio of linear-geometry distortion (RLGD) are jointly estimated by optimizing the image quality, which is measured by the image entropy. After parameter estimation and phase compensation, the image without linear-geometry distortion is generated by the matched Fourier transform (MFT). Numerical results validate that the proposed method works robust under different signal to noise ratio (SNR) conditions.

Citation Download Citation

Likang Deng, Shuanghui Zhang, and Yongxiang Liu "Bistatic-ISAR cross-range scaling and distortion correction", Proc. SPIE 11719, Twelfth International Conference on Signal Processing Systems, 117190Y (20 January 2021); https://doi.org/10.1117/12.2589513

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