Method to remove the interference in reflected wave of passive radar based on the improved FastICA

In allusion to the complexion that the serious harm to passive radar which is based on FM (the resource of frequency modulation) by the multiplex interference in identical frequency, and the average method such as filter couldn´t remove it, a novel method to eliminate the interference based on the improved FastICA (fixed point independent component analysis) is presented. This method pick-up the pure signal by blind source separation which is depended on the improved FastICA and eliminate the multiplex interference in identical frequency. The result of blind source separation for the data show that the improved FastICA is a effective method in eliminating the interference. Therefore, this method can improve the precision of orientation for passive radar which is based on the FM.