基于改进的循环互相关MUSIC算法的波达方向估计

A Improved Cyclic Cross Correlation MUSIC Algorithm Direction of Arrival Estimation

给出了基于循环互相关运算的信号模型 ,根据该信号模型 ,运用改进的循环互相关 MU SIC算法得到了对具有循环平稳特性的空间源信号波达方向进行估计的有效方法 ICCC MU SIC算法 ;定性的分析和仿真实验均表明该方法具有较好的抑制噪声和选择信号的能力 ,为利用天线阵列提取具有循环平稳特性的源信号提供了较好的实现方法。

The problem of estimating the direction of arrival for source signals utilizing the cyclostationarity property is discussed in the paper. First, an array signal model based on cyclic cross correlation is proposed. According to the above signal model, a direction of arrival estimation method for source signalsICCCMUSIC algorithm is developed. The results of a qualitative and computer simulation indicate that ICCCMUSIC algorithm shares the better performance in noise suppressing and signal selectivity, which provides an efficient approach for the direction of arrival estimation of cyclostationary source signals.