Multi-parameter combined optical performance intelligent monitoring method, system and device

The invention provides a multi-parameter combined optical performance intelligent monitoring method, system and device suitable for an elastic optical network, and belongs to the technical field of optical fiber communication, and the method comprises the steps: carrying out the preprocessing of signals of different parameters obtained by a digital coherent receiver in the elastic optical network, and obtaining a gray scale constellation diagram with edge information; performing Hough transform on the grayscale constellation diagram to obtain a Hough transform image with difference in a parameter space; and sending the Hough transform image into a multi-task residual neural network for learning to realize joint identification and estimation of two baud rates, five modulation formats, 11 residual difference group delay values, 7 residual dispersion values and 15 optical signal-to-noise ratio values corresponding to each modulation format, thereby completing multi-parameter joint optical performance intelligent