中文说明：应用背景 MUSIC(MUltiple SIgnal Classification，多重信号分类)算法的基本思想是:通过对阵列接收数据协方差矩阵的特征分解，将其划分为两个相互正交的子空间:一个是由信号导向矢量张成的信号子空间，另一个则是与信号子空间正交的噪声子空间。然后利用这两个子空间的正交性来构造空间扫描谱，通过谱峰搜索来获得信号的DOA 关键技术 雷达的发展自1904年Hulsmeye:研制出原始的船用防撞雷达获专利以来已有一百多年的历史，然而真正的现代雷达是最近50年才发展起来的[[2]。今天它已经发展成为一项非常广泛而实用的技术。雷达理论和雷达应用的发展相辅相成，互相促进。由于受到软硬件水平的限制，雷达理论研究通常领先于雷达系统的应用，MIMO雷达也不例外。现阶段对MIMO雷达的研究主要处于理论研究阶段
English Description：
Application backgroundThe basic idea of MUSIC (SIgnal Classification MUltiple) algorithm is to divide the data covariance matrix into two sub spaces: one is the signal subspace and the other is orthogonal to the signal subspace. Then, the spatial scanning spectrum is constructed by the orthogonality of the two subspaces, and the DOA of the signal is obtained by spectral peak search.Key Technology the development of radar, since 1904 Hulsmeye: developed the original ship with the collision avoidance radar has been more than one hundred years of history, but the real modern radar is the last 50 years to develop the [[2]. Today it has developed into a very broad and practical technology. The development of radar theory and radar applications are mutually complementary and promote each other. Due to the limitations of the level of software and hardware, radar theory research is usually ahead of the radar system, MIMO radar