JTC邻区段干扰对TCR的影响研究  

Study on Influence of JTC Adjacent Section Interference on TCR

作　　者：赵林海[1] 任磊[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《铁道学报》2013年第12期51-56,共6页Journal of the China Railway Society

基　　金：中央高校基本科研业务费专项基金(2011JBM205)

摘　　要：本文根据JTC(Jointless Track Circuit)的基本结构与工作原理,利用传输线理论建立JTC邻区段干扰在TCR(Track Circuit Reader)接收天线中的分量模型,确定邻区段干扰的最不利条件,并以此条件对各调谐单元正常与分别故障情况下,邻区段干扰在TCR天线中的接收分量进行仿真分析。实验表明,只有本轨道区段零阻抗调谐单元故障会产生较大的邻区段干扰,且其强度已超过TCR信号接收阈值。According to the basic structure and working principle of JTC, the model of the JTC adjacent section interference components in the TCR antenna was built by utilizing the transmission line theory and the most disadvantaged conditions of JTC adjacent section interference were determined. The JTC adjacent section interference components in TCR were simulated and analyzed under the above most disadvantaged conditions and with tuning units either all operating normally or failing individually. The research results show that only the failure of the zero impedance tuning unit in a JTC section results in great adjacent section interference, the strength of which exceeded the reception threshold of the TCR signal.

关 键 词：无绝缘轨道电路 邻区段干扰 轨道电路读取器 传输线理论 调谐单元 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] U298[自动化与计算机技术—计算机科学与技术]