The category identification of track communication signal is not accurate because of the poor effect of interference fil-tering.Therefore,a high-precision automatic monitoring system for track communication signal under various interference con-ditions is studied.The system uses AT89C52 single chip microcomputer as the central processor,and separately filters the sig-nal processing electromagnetic interference and co-frequency interference through digital filter and complex filter.The track communication signal is transmitted to FPGA after filtering,the signal features are extracted,and the dynamic parameter iden-tification model of track communication signal is constructed by combining the feature decomposition method,so as to identify the category of track communication signal with high precision and realize the high-precision automatic monitoring of track com-munication signal.
关键词
多干扰/轨道通信信号/自动化监测/数字滤波器/复数滤波器/信号识别
Key words
various interference/track communication signal/automated monitoring/digital filter/complex filter/signal recog-nition
维普
万方数据