Wireless communication scene recognition system based on feature extraction and dimension reduction

A wireless communication scene recognition system based on feature extraction and dimension reduction receives a pseudo-random pilot signal from a wireless channel through a time domain analysis module, and performs feature extraction according to time domain response information in the pseudo-random pilot signal to obtain a time domain signal; performing time-frequency analysis on the time-domain signal through a time-frequency analysis module to obtain a time-frequency graph; the dimension of the time-frequency graph is reduced through graying and image size adjustment operation by a feature dimension reduction module; performing combined dimension reduction through a combined dimension reduction time-frequency diagram and a time domain module according to the time-frequency diagram after dimension reduction and amplitude information of the time domain signal serving as the interference feature, and then generating a combined feature; and a wireless communication scene is obtained through training by a conv