相敏接收电路的过渡过程分析  

Transient Analysis of Phase Sensitive Receiving Circuit

作　　者：李开成[1] 费锡康[1] 

机构地区：[1]北方交通大学运输自动化科学技术研究所

出　　处：《北方交通大学学报》1994年第2期147-153,共7页Journal of Northern Jiaotong University

摘　　要：讨论了５０Ｈｚ动态牵引电流对２５Ｈｚ相敏轨道电路造成的影响，建立了２５Ｈｚ相敏接收电路的数学模型。用计算机仿真的方法分析并模拟了相敏接收电路的过渡过程，又讨论了动态牵引电流的初相位与相敏接收电路过渡过程的关系。The influence to 25Hz phase sensitive track circuit caused by 50Hz dynamic traction current is discussed.After setting up the mathematic model of 25Hz phase sensitive receiving circuit,the transient of phase sensitive receiving circuit is analysed by means of computer simulation,and a discussion on the relationship between the phase of dynamic traction current and the transient of phase sensitive rceiving cixcuit is given.

关 键 词：轨道电路 过渡过程 相敏接收电路 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]