Joint equalization of fast RSOP and large PMD based on RD-EKF for PDM-MQAM system
Pengcheng Liu,
Wei Ji,
Yuqian Wang
et al.
Abstract:Extended Kalman filter (EKF) is a popular method to address the fast rotation of the state of polarization and large polarization mode dispersion in coherent optical communication. But it is usually underperforming in high-order modulation. Radiusdirected idea is introduced to enhance the performance of EKF-based method. We call the proposed scheme radius-directed extended Kalman filter (RD-EKF). The performance of the proposed Kalman scheme is verified both in the polarizationdivision multiplexed 16QAM and 64… Show more
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