An Implicit Triplet Neural Network and Optical Fiber Nonlinear Damage Equalization Method

Abstract

The invention relates to an implicit triplet neural network and an optical fiber nonlinear damage equalization method, belonging to the technical field of optical fiber communication and equalization. It includes an implicit triplet neural network and an optical fiber nonlinear damage equalization method based on the network. The method: 1) generating a training set, a verification set and a test set, specifically: generating a binary bit stream, generating a label symbol stream, acquiring a to-be-processed symbol stream, generating samples and dividing a data set 2) optimizing the implicit triplet neural network network to obtain the optimal implicit triplet neural network; initialize the hyperparameter search process, initialize the tunable parameter iteration process, calculate the loss function and the gradient of all tunable parameters and update the tunable parameters, iterate and evaluate the optimization results, select the most Excellent implicit triplet neural network; 3) Test the implicit triplet neural network to get the equalized signal. Compared with the prior art, the neural network and the method have lower computational cost and can further improve the equalization effect.

Description

technical field [0001] The invention relates to an implicit triplet neural network and an optical fiber nonlinear damage equalization method, and belongs to the technical field of optical fiber communication and equalization. Background technique [0002] The capacity of an optical fiber communication system is limited by the linear damage and nonlinear damage of the optical fiber. With the development of optical fiber communication technology, the communication capacity of optical fiber communication system has approached the Shannon limit in the linear region. To further improve the communication capacity of the optical fiber communication system, it is necessary to break through the limitation of the nonlinear damage of the optical fiber. In addition to link optical compensation methods, typical optical fiber nonlinear compensation methods also include digital signal processing compensation methods. Compensation methods for digital signal processing include digital back...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an implicit triplet neural network and an optical fiber nonlinear damage equalization method in view of the technical defects that the existing optical fiber nonlinear damage equalization method requires a lot of training data and high complexity

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