Research of Passive Radar Signal Processing Based on Blind Source Separation
HE Xiao-min · Modern Electronics Technique · 2010
In order to overcome the difficulty that accurately extract and separate the direct and reflected wave signals of passive radar based on FM resource,the improved FastICA algorithm is applied to the extraction of the direct and reflected wave signals of the passive radar after estimating the number of sources,and then the sort order based on correlation coefficient and the phase adjustment algorithm are adopted to adjust the sort order and phase.The simulation result shows that this method can implement the accurate separation and extraction of the passive radar direct and reflected wave signals from the mixed signals in identical and adjacent frequency.It can provide a foundation for the further precise orientation of the passive radar.