利用music算法，在考虑幅度误差时，对信源个数，信噪比，快拍数进行变化，观察这三个数在什么范围变化时测向的准确度高。天线测向-Music algorithm, considering the magnitude error, the number of sources, signal-to-noise ratio, snapshots number of changes observed these three the number of measured to what extent cha