Extended Kalman Filter Scheme for Polarization Demultiplexing in PDM-PCS-64QAM Communication System

Extended Kalman filter (EKF) algorithm is optimized for PCS-64QAM signals polarization de multiplexing. It can achieve excellent de multiplexing performance with 8ps DGD and 1Mrad/s RSOP while MMA and original EKF both fail to work.