摘要
研究表明,通过高阶累积量可以对实际阵列进行虚拟孔径扩展,并对多于实际阵元数的信号进行DOA估计,由此形成例如MUSIC-LIKE、VMUSIC与VESPRIT等算法。但这些算法不能在信源数未知条件下工作。为此,文章研究了一种稳健性DOA算法。该算法在虚拟扩展孔径的同时,可实现对DOA与信源数的联合检测。计算机仿真试验表明新算法有较好的DOA与信源数检测性能。
It＇ s showed that the real array could be virtually expanded by the higher order cumulants （HOC）. So many DOA algorithms were proposed, such as MUSIC-LIKE, VMUSIC, and VESPRIT etc. Nevertheless, the mentioned algorithms were difficult to be applied while the signals number unknown. In the paper studied was a robust DOA algorithm to smooth away the problem. The new algorithm could get the estimate of true DOA and the signals number. Computer simulation tests showed that true.
出处
《信息通信》
2013年第8期40-41,共2页
Information & Communications
