A coherent light receiver dynamic balancing method based on a butterfly linear Kalman filter
A Kalman filter and dynamic equalization technology, applied in the field of communication, can solve the problems of slow convergence speed, poor polarization state tracking performance, code pattern correlation, etc., and achieve fast convergence speed, strong polarization state tracking performance, and singularity suppression. Effect
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[0043] Example: figure 1 It shows a basic implementation structure of the optical signal dynamic equalization algorithm based on the butterfly linear Kalman filter proposed in this patent, 101 is the input signal Z in , can be an M-dimensional multiplexed signal (M is an integer greater than or equal to 2), taking a dual-polarization multiplexing coherent optical communication system as an example, Z in contains two vertically polarized multiplexed signals 102 and 103
[0044] Z i n = X ( n ) Y ( n ) ,
[0045] Where X(n) represents the signal on the X polarization state received by the receiver, and Y(n) represents the signal on the Y polar...
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