Ground moving target indication for multichannel synthetic aperture radar systems using asymmetry of spatial spectrum

Hongchao Zheng; Junfeng Wang; Xingzhao Liu

doi:10.1117/1.JRS.12.015011

14 February 2018 Ground moving target indication for multichannel synthetic aperture radar systems using asymmetry of spatial spectrum

Hongchao Zheng, Junfeng Wang, Xingzhao Liu

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 12, Issue 1, 015011 (February 2018). https://doi.org/10.1117/1.JRS.12.015011

Abstract

A scheme is presented for ground moving target indication in multichannel synthetic aperture radar (SAR) systems. After the effect of different Doppler centroids is compensated, the spatial spectrum is symmetric around zero for a stationary scatterer but asymmetric around zero for a moving scatterer. Thus, moving targets can be detected through measuring the asymmetry of their spatial spectra. Moreover, since the asymmetry of the spatial spectrum can be measured directly in the spatial domain, the procedure of estimating the spatial spectrum is avoided and the computational efficiency is improved greatly. The effectiveness of this scheme is verified by both simulated and real SAR data.

Citation Download Citation

Hongchao Zheng, Junfeng Wang, and Xingzhao Liu "Ground moving target indication for multichannel synthetic aperture radar systems using asymmetry of spatial spectrum," Journal of Applied Remote Sensing 12(1), 015011 (14 February 2018). https://doi.org/10.1117/1.JRS.12.015011

Received: 21 September 2017; Accepted: 25 January 2018; Published: 14 February 2018

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