摘要
Kalman filtering(KF) has good potential in fast rotation of state of polarization(RSOP) tracking. Different measurement equations cause the diverse RSOP tracking performances. We compare the conventional KF(CKF) and the modified KF(MKF), which have different measurement equations. Semi-theoretical analysis indicates the lower conditional variances of measurement residuals and process noise of MKF. Compared with CKF, the MKF has > 3 d B optical signal-to-noise ratio(OSNR) improvement at the 10 MHz scrambling rate in simulation. For MKF, more significant tracking speed improvement exists for lower OSNR. MKF can be smoothly combined with an adaptive algorithm, which outperforms adaptive CKF throughout the simulations.
作者
Shaohua Hu
Jing Zhang
Qun Liu
Linchangchun Bai
Xingwen Yi
Bo Xu
Kun Qiu
胡少华;张静;刘群;柏林长春;易兴文;许渤;邱昆(Key Laboratory of Optical Fiber Sensing and Communications,University of Electronic Science and Technology of China,Chengdu 611731,China;School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510275,China)
基金
This work was supported by the National Key Research and Development Program of China(No.2018YFB1801704)
National Natural Science Foundation of China(NSFC)(Nos.61871082 and 61871408)
State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Jiao Tong University(No.2020GZKF014)
Fundamental Research Funds for the Central Universities(Nos.ZYGX2020ZB043 and ZYGX2019J008)
Open Fund of IPOC(BUPT)(No.IPOC2020A011)。
