一种基于相关算法的轨道电压相位差检测法  

Method of phase difference measurement of track voltage based on correlation algorithm

作　　者：冉娜娜[1] 戴胜华[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：《铁路计算机应用》2010年第11期48-50,共3页Railway Computer Application

摘　　要：本文提出一种基于相关运算的新方法,把经过隔离,滤波等处理后的信号送入芯片的模数转换器进行抽样,并按照相关运算公式的离散时间表达式进行计算。通过测试,此算法不但能够达到很高的准确度,而且能够有效地抑制各种干扰。The paper dealed with a new method based on correlation algorithm.The signal was passed to the A/D converter to be sampled after isolated and filtered,and then the data would be calculated according to the correlation operational formula.This method was very accurate and could reject kinds of noise based on many tests.

关 键 词：互相关 自相关 相位差检测 轨道电压 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]