多种干扰下轨道通信信号高精度自动化监测系统  

High Precision Automatic Monitoring Systemfor Track Communication Signals under Various Interference

作　　者：李守杰 曹义斌 董海萍 LI Shoujie;CAO Yibin;DONG Haiping(Ningbo Rail Transit Group Co.,Ltd.,Ningbo 315101,China;China Railway Communication and Signal Survey&Design Institute Co.,Ltd.,Beijing 100036,China;Zhejiang Huazhan Research&Design Institute Co.,Ltd.,Ningbo 315101,China)

机构地区：[1]宁波市轨道交通集团有限公司,浙江宁波315101 [2]中铁通信信号勘测设计院有限公司,北京100036 [3]浙江华展研究设计院股份有限公司,浙江宁波315101

出　　处：《微型电脑应用》2024年第8期159-163,共5页Microcomputer Applications

摘　　要：轨道通信信号监测由于干扰滤波效果差,导致监测结果的轨道通信信号类别识别不准确,因此,研究一种多种干扰条件下轨道通信信号高精度自动化监测系统。该系统利用中央处理器AT89C52型单片机作为中央处理器,通过数字滤波器与复数滤波器分别滤波处理信号电磁干扰与同频干扰;滤波处理后的轨道通信信号传输至FPGA内,提取信号特征,结合特征分解方法,构建轨道通信信号动态参数识别模型,高精度识别轨道通信信号类别,实现轨道通信信号高精度自动化监测。The category identification of track communication signal is not accurate because of the poor effect of interference filtering.Therefore,a high-precision automatic monitoring system for track communication signal under various interference conditions is studied.The system uses AT89C52 single chip microcomputer as the central processor,and separately filters the signal 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 identification 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 communication 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 

分 类 号：TM97[电气工程—电力电子与电力传动]