阵列信号处理中DOA估计的误差分析

Inaccuracies Analysis for DOA Estimation on the Array Signal Processing

多重信号分类法(即MUSIC算法)具有很高的分辨力、估计精度及稳定性,在阵列信号处理中对DOA(direction of arrival)的估计也一直是人们研究的热点。通过对MUSIC算法中影响DOA估计的误差因素进行分析和研究,讨论MUSIC算法的估计性能。理论分析和仿真结果表明,对非相关或相干信号,MUSIC算法是一种有效的测量目标方位角的方法。

The multiple signal classification is also MUSIC algorithm with higher resolving power, estimation precision and stability, which is also a hot research field all the time to DOA estimation on radar signal processing. The inaccuracy factors of DOA estimation are analysed and studied on MUSIC algorithm and discussed the estimation performances and features of MUSIC algorithm. The theory analysis and simulation results demonstrate that, to the non-correlation signal, MUSIC algorithm is also an effective method for the measure of target direction angle.