Blind source separation of dual-carrier MPPSK signal based on smoothed pseudo wigner distribution

This work presents a dual-carrier MPPSK system with blind source separation (BSS). The approach uses smooth pseudo Wigner-Ville distribution (SPWVD) to obtain t-f distribution. The simulation results show that the estimated signals can recover the sources well, so we use the SIF after the BSS directly to judge the code by threshold decision. Finally, we compared the performance to the usual MPPSK system, and results show the effectiveness of our approach.