摘要
在传统MUSIC的基础上介绍了SSMUSIC,并以ULA为例,通过计算机模拟发现SSMUSIC比传统的MUSIC具有更好的角度分辨力。但是当阵列入射信号相干时,SSMUSIC的估计性能明显下降。为了解决此问题,首先对数据协方差矩阵进行前后向平滑,再用SSMUSIC进行波达方向(DOA)估计。计算机仿真结果表明,引入了前后向平滑后,提高了SSMUSIC的解相干能力。
A SSMUSIC algorithm is introduced based on traditional MUSIC algorithm,which has better angle resolution between two closely sources by the computer simulation based on the ULA.When the sources are coherent,the performance of SSMUSIC for DOA estimation deteriorates clearly.A forward-backward-smoothing technique is used and the SSMUSIC is applied to estimate DOA,in order to resolve this problem.The computer simulation indicates that the ability of SSMUSIC to differentiate coherent signals is improved by the forward-backward-smoothing technique.
出处
《现代电子技术》
2010年第11期29-31,共3页
Modern Electronics Technique
