计算机科学 ›› 2017, Vol. 44 ›› Issue (12): 72-74.doi: 10.11896/j.issn.1002-137X.2017.12.014
刘艳,廖勇
LIU Yan and LIAO Yong
摘要: 波达方向(DOA)估计是阵列信号处理的研究热点和难点之一。基于阵列天线, 利用空间谱估计理论进行DOA估计,提出一种改进算法——I-UCA-ESPRIT。首先根据均匀圆阵(UCA)的中心对称性,将输入信号进行重新排列;然后将重新排列的信号进行实值转换,并对相关矩阵进行特征值分解;最后引入SVD算法,以求解来波信号的方位角和俯仰角。仿真结果表明,该算法不仅适用于DOA估计的非相干信号和相干信号,且优于UCA-RB-MUSIC算法和UCA-ESPRIT算法。
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