摘要
本文在Evans的空间平滑预处理技术基础上,提出了双向空间平滑预处理技术,并证明了后者在去相关、孔径的有效利用率以及孔径尺寸一定时,阵列最多可分辨的相干源数目方面均优于前者。计算机仿真结果验证了上述结论。
Based on Evans' spatial smoothing preprocessing scheme, a new approach aalled two-direction spatial smoothing preprocessing method is presented. It is proved that the decor-relation, the effective aperture and the maximum number of distinguishable coherent signals (when array size is given) of the new method are better than those of the Evans' method. 'Simulation results give a comparison between the eigenvector spectrums produced by the two methods.
关键词
雷达
阵列天线
相干源
空间平滑
Array antenna
Coherent signal
Two-direction spatial smoothing method
