【摘要】 讨论了在移动通信环境中采用协方差差分和迭代空间平滑以进行信号来波估计(Direction Of Arrival)的一种改进MUSIC算法.首先简要回顾了经典MUSIC算法,给出阵列接收信号模型,然后详细分析了经典MUSIC算法估计相干信号所存在的问题,在常规空间平滑算法(SS)的基础上提出了一种改进算法,最后给出计算机仿真结果并验证了新算法的有效性。更多还原

【Abstract】 An improved spatial smoothing technique for direction of arrival estimation is proposed,it uses covariance difference and iterative spatial smoothing.Firstly,a model of array antenna receive signal is described,then MUSIC algorithm is reviewed,problems existing in SS algorithm are pointed out,an effective method to solve this problem is proposed.Finally,simulation results prove the effectiveness of the improved algorithm.更多还原