一种直接回波数据域雷达自适应通道均衡方法

doi:10.3969/j.issn.1001-2400.2010.02.006

Abstract

Abstract:

In the actual airborne multi-channel GMTI system, the mismatch error exists in different channels and degrades the capability of repression for the ground clutter, thus affecting the detection of weak moving targets. To deal with this problem, a novel channel equalization approach based on the ground clutter data is presented. In this method, according to the characteristic of the ground clutter for multi-channel radar, the wiener filter technique is applied to evaluate and compensate the mismatch errors, without refitting the radar equipments in use. Then the relationship between the performance and the correlation coefficient of the ground clutter signal is analyzed in the situation of limited samples. Finally, the effectiveness of the method proposed is validated by measured data.

Key words: channel equalization, mismatch error compensation, GMTI, clutter repression

LIU Xiang-yang;LIAO Gui-sheng;ZHU Sheng-qi;MAO Zhi-jie. Adaptive radar channel equalization approach in the echo data domain[J].J4, 2010, 37(2): 210-217.

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Adaptive radar channel equalization approach in the echo data domain

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