Incoherent DPSK and FSK Receiving Improvement Using Blind Source Separation Algorithm

This work considers the possibility of improving the noise immunity of incoherent reception of DPSK and FSK signals. The considered method of blind separation of signals, based on bringing the joint cumulants of higher orders to zero, is presented. Algorithms for incoherent modulation and demodulation of DPSK and FSK signals are described. The simulation of reception of signals with different sizes of the alphabet of the transmitted symbols is carried out. Simulation has shown the efficiency of separating the information signal from interference using the proposed algorithm for blind signal separation.