music高阶谱分析算法研究，同时还包括信号维数的估计，即mdl准则的研究-high-end music spectrum analysis algorithm, but also including the signal dimension is estimated that the study criteria mdl

运用4阶高阶累积量的MUSIC算法具有更高的测向精度，需要较低的信噪比-Using 4-order cumulant of the MUSIC algorithm has higher accuracy of finding the need to lower signal to noise ratio