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传统DOA估计算法不能处理多于阵元数的信号源,而且估计精度也不能满足一些高估计精度的场合,近年来基于非圆信号的DOA估计算法由于其优良的估计性能,受到越来越多的关注。依据非圆信号的DOA估计数学模型,研究了基于非圆信号的MUSIC算法。通过软件仿真,将基于非圆信号的MUSIC算法的各项性能进行了仿真。结果表明,该算法的估计性能比传统MUSIC算法有了明显的提高。
Traditional DOA estimation algorithms can not handle more than the number of array elements, and the estimation accuracy can not meet some high estimation accuracy. In recent years, the non-circular DOA estimation algorithms are receiving more and more due to their excellent estimation performance s concern. Based on the mathematical model of DOA estimation of non-circular signals, the MUSIC algorithm based on non-circular signals is studied. Through software simulation, the performance of MUSIC algorithm based on non-circular signal is simulated. The results show that the performance of the proposed algorithm is obviously improved compared with the traditional MUSIC algorithm.