仿真SMI（DMI）算法性能，观察采样快拍数对波束图的影响，接收信号中不包含、包含信号功率逐渐加大对波束图的影响。-Simulation SMI (DMI) algorithm performance, the number of snapshots observed sampling effects on the beam diagram, the received signal does not contain, include the gradual increase in signal power diagram of the impact beam.