摘要
Based on Evans’spatial smoothing preprocessing scheme,a new approach calledtwo-direction spatial smoothing preprocessing method is presented.It is proved that the decorre-lation,the effective aperture and the maximum number of distinguishable coherent signals(whenarray size is given)of the new method are better than those of the Evans’method.Simulationresults give a comparison between the eigenvector spectrums produced by the two methods.
Based on Evans'spatial smoothing preprocessing scheme,a new approach called two-direction spatial smoothing preprocessing method is presented.It is proved that the decorre- lation,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.
