The structure clutter was suppressed using four adaptive Weighted Directional Median Values (WDMV) on the ground of its correlation in the local neighbor.

• 利用背景杂波在局部空间上的相关性，提取目标在四个方向的中值进行自适应加权滤波，抑制结构性杂波分量，改善信噪比。