The Clutter Suppression Method of Airborne Multi-channel SAR-GMTI System
机载多通道SAR-GMTI的杂波抑制方法

This paper investigates the clutter suppression problem of airborne multi-channel SAR-GMTI system. A key problem for ground moving target indication is clutter suppression, which is sensitive to the correlation of channels. For the multi-channel system, there are differences among the characteristic of two channels and also the antenna patterns, which worse the correlation of channels. This paper proposes a channel equalization method and an adaptive clutter canceling method to improve the clutter suppression ratio. Theoretical results are evaluated and illustrated with experimental airborne SAR data.