实现对自适应波束形成SIM算法的仿真，在该程序中，我们先设置入射的信号，再进行互协方差矩阵和自协方差矩阵的求解来实现该算法-To achieve adaptive beamforming algorithm for the simulation of SIM, in the process, we first set up the incident signal and then cross-covariance matrix and covariance matrix from the sol