基于DSP的列车信号处理算法分析  

Analysis of Train Signal Handling Algorithm Based on DSP

作　　者：沈兆军[1] 陈荣[1] 

机构地区：[1]盐城工学院电气研究所,江苏盐城224051

出　　处：《计算机测量与控制》2010年第3期661-663,共3页Computer Measurement &Control

摘　　要：介绍一种互相关检测解调算法用于列车交通信号的检测,可将不同制式下的各种高频信号送DSP进行处理,提取出承载列车控制信号的低频信号,以便分析其中的载频信息和低频信息;对互相关检测算法流程作了分析说明,提出该算法在DSP器件上的基本实现方案,并给出了部分实验数据;采用互相关解调算法(能量算法)对轨道信号进行解调,具有运算速度快、精度高、抗干扰性能好和对硬件资源要求低等特点;经过反复的轨道信号实测,完全符合国家标准。This paper introduce a kind of closes detection demodulation algorithm mutually to be used in train traffic signal. Make the various signals of high frequency send to DSp to he handled, and draw the low frequency signal of train control, in order to analyze carrier frequency information and the low frequency information. Give the analysis explanation to the cross--correlation detection algorithm flow. Proposes realization plan this algorithm on the DSP. And give the part empirical daturrh The cross correlation demodulation a/got/thin has high--speed calculation, high precision, anti--jamming and low hardware requests. After several test, the ATP system is absolutely accordant to the standard.

关 键 词：DSP 互相关解调 ATP 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]