该程序利用空时二维自适应原理仿真了杂波的二维方向图，计算了杂波协方差矩阵，并画出了二维杂波谱。-The program uses the principle of space-time adaptive simulation of a two-dimensional patterns of the clutter, clutter covariance matrix is ​ ​ calculated, and plotted the two-dimensional clutter spectrum.