Root-MUSIC,PM,MUSIC算法的比较

Comparison of Root-MUSIC and PM Algorithm with MUSIC

对测向算法(DOA)中的2种降低运算量的算法,即求根的MUSIC算法(Root-MUSIC)和传播算子算法(PM),与多重信号分集算法(MUSIC)进行比较,并对两者降低运算量的作用进行了有效性分析和验证.Root-MUSIC算法通过求根降低运算量,PM通过矩阵乘法代替矩阵分解降低运算量.仿真结果表明,在阵元数较少时Root-MUSIC是最有效的算法,否则PM算法更为有效.

Root-MUSIC and PM which are aimed to reduce complexity of calculation have been discussed and compared with MUSIC in this article. Root-MUSIC algorithm reduces complexity of calculation by calculating polynomial roots,while PM algorithm by using matrix multiplication instead of eigen-decomposition. The simulation demonstrates, among the three algorithms, Root-MUSIC performs best in the case of a small amount of array elements;otherwise,PM will be better.