| 1. | Fortunately , we can solve this problem by using ap ( alternating projection ) algorithm , by this way ; the computational load can reduce dramatically . doa estimation is mostly research base on linear array , because of the limitation of linear , it can estimate the azimuth only ; solid array can estimate the azimuth and elevation , in this paper , the solid array is used for doa estimation ; when the signal sources are uncorrelated , the music algorithm is chosen , using mdl / aic algorithm , we attain the signal number of sources
本文采用立体六元阵进行测向,在非相干信号源条件下,采用music算法进行doa估计,采用基于信息论原理mdl准则或者aic准则判断信号源数目,通过对阵列流形的研究,指出基于圆阵的阵列流形具有的某种对称性,利用该对称性来降低运算量,并且通过对算法的研究,提出用维数较小的信号子空间或噪声子空间来计算空间谱,进一步减小music算法运算量。 |
