中文说明：SIRP法仿真K分布杂波，之前有下载过类似的，但是建立非线性表时的函数定义是有错误的，进行了修改，可以得到较好的估计效果
English Description：
SIRP method is used to simulate K-distribution clutter. Some similar ones have been downloaded before, but the function definition in the establishment of nonlinear table is wrong, so it can get better estimation effect after modification