DOA 估计技术作为第三代移动通信的关键技术之一，在无线通信中起着重要的作用，此技术有很多的算法，其中music是很重要的算法之一。-DOA estimation techniques as a third-generation mobile communications, one of the key technologies in wireless communications have played an important role in this technology have a lot of algorithms, which is very important to music as one algorithm.