基于误差曲线拟合的SAR-GMTI通道均衡方法

Focusing of the problem of uncleanness of clutter suppression caused by the difference among different channels of SAR-GMTI, and the fake error of detection and orientation of the moving targets, subsequently. A simple but effective approach using curve fitting in the Doppler domain is proposed to describe the error among different channels. The influence introduced in from the system is greatly eliminated by the proposed method, and the coherent coefficient between channels are improved. Accurate processing is achieved for the detection and orientation of the moving target, due to the cleanness implementation of clutter suppression with calibration channels. The effectiveness of the method is demonstrated with real data.