空间平滑自适应阵的性能研究

Study of the Performance of Spatially Smoothing Adaptive Array

在自适应阵中 ,理想信号经常和干扰信号相干 ,空间平滑法经常用来抑制相干干扰 .为更好地使用空间平滑法 ,通过分析输出SNR ,对自适应空间平滑阵性能进行了分析 ,可知随着理想信号和相干干扰之间角度差的增大及相干干扰功率的增大 ,输出SNR增大 .计算机仿真验证了此分析结果 .

In adaptive array,the desired signal is often correlated with the interference and the approach of spatial smoothing is often applied to suppress coherent interference.In order to use the method of spatial smoothing much more efficiently,we analyzed the performance of a spatial adaptive array.In accordance with the analysis of the output SNR,we got to know that with the increase of the difference between the angle of desired signal and coherent signal and the accretion of the power of coherent interference the output SNR increases,which has got the verification by computer simulation.