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中文摘要：
给出了多输入多输出（multiple-input multiple-output,MIMO）阵列的阵列信号模型。针对信号为非圆信号的形式,提出了一种在MIMO阵列中基于非圆信号的共轭多重信号分类方法（multiple-input multiple-out-put conjugate multiple signal classification,MIMO CMUSIC）。这种方法充分利用非圆信号的特点,从阵列接收数据构造共轭对称的Toeplitz矩阵得到伪协方差矩阵,然后用常规MUSIC方法进行处理。仿真结果表明,与常规MUSIC方法相比,在只需要一次或者少次快拍下,此方法在MIMO阵列中能够分辨多个目标,性能远优于常规的MIMO MUSIC方法。
英文摘要：
An improved MUSIC method for non-circular sources in multiple-input multiple-output（MIMO） array signal model is proposed to estimate the directions of arrival.The proposed method exploits the characteristics of non-circular sources to construct a conjugate symmetric Toeplitz matrix from received data vectors so as to form a pseudo covariance matrix,then the source directions of arrival are estimated by techniques similar to the MUSIC method.Simulation results show that the proposed method can resolve multi-targets by using only one or a few snapshots in the MIMO array.And its performance is better than the traditional MIMO MUSIC method.
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