基于DSP的智能相敏轨道电路测试盘研究和实现  

Research and Implementation of Intelligent Phase Sensitive Track Circuit Test Panel Based on DSP

作　　者：朱运祥 ZHU Yunxiang

机构地区：[1]中国铁路设计集团有限公司,天津300308

出　　处：《铁道通信信号》2023年第7期23-28,共6页Railway Signalling & Communication

基　　金：中国铁路设计集团有限公司科技开发课题(N2020G020)。

摘　　要：为提高25 Hz相敏轨道电路测试盘的智能化水平,设计一种基于数字信号处理的智能相敏轨道电路测试盘,增加了对分路状态下轨道电压和局部电压的相位差,以及电码化干扰信号的检测。通过对该测试盘进行测试,结果表明:该轨道电路测试盘在保证对25 Hz相敏轨道电路进行信息检测的同时,还可实现对电码化干扰信号和相位差的准确检测。In order to improve the intelligence of the 25Hz phase sensitive track circuit test panel,a new intelligent track circuit test panel based on DSP is designed.The detection of the phase difference between the track voltage and the local voltage under the shunt state,as well as the coded interference signal is added.The test results show that the track circuit test panel can realize the accurate detection of coded interference signal and phase difference while ensuring the detection of 25Hz phase sensitive track circuit information.

关 键 词：相敏轨道电路 测试盘 干扰信号 智能 数字信号处理 检测 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]