FFTW algorithm-based Mach-Zehnder perimeter protection systems

Liao Jun; Zhang Zhiyong; Shao Liyang; Yan Lianshan; Wang Pengxiang; Yu Jie

doi:10.13756/j.gtxyj.2015.04.013

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FFTW algorithm-based Mach-Zehnder perimeter protection systems

- FFTW algorithm-based Mach-Zehnder perimeter protection systems
- Study on Optical communication Issue 4, Pages: 37-38(2015)
- 作者机构：
  
  1. 西南交通大学信息光子与通信研究中心
  2. 西南交通大学铁路发展有限公司
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.04.013
  CLC： TN911.7;TP212
- Published：2015，
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[1]廖俊,张志勇,邵理阳,闫连山,王鹏翔,喻劼.基于FFTW算法的M-Z周界防护系统[J].光通信研究,2015(04):37-38+75.

Liao Jun, Zhang Zhiyong, Shao Liyang, et al. FFTW algorithm-based Mach-Zehnder perimeter protection systems. [J]. (4):37-38(2015)
[1]廖俊,张志勇,邵理阳,闫连山,王鹏翔,喻劼.基于FFTW算法的M-Z周界防护系统[J].光通信研究,2015(04):37-38+75. DOI： 10.13756/j.gtxyj.2015.04.013.

Liao Jun, Zhang Zhiyong, Shao Liyang, et al. FFTW algorithm-based Mach-Zehnder perimeter protection systems. [J]. (4):37-38(2015) DOI： 10.13756/j.gtxyj.2015.04.013.

摘要

采用FFTW（西方快速傅里叶变换）算法实现了两路接收信号的快速互相关计算

提高了M-Z（马赫-曾德）周界防护系统定位的实时性。搭建了M-Z周界防护实验装置

在6km光缆上进行了振动信号定位测试。在20 MHz采样率条件下实现了21m的定位精度

定位计算时间小于0.5s。实验结果表明

此算法与传统FFT（快速傅里叶变换）算法相比

计算速度显著提高。

Abstract

Fast cross-correlation calculation of the signals received in two channels are realized by using the Fastest Fourier Transform in the West（FFTW）algorithm

real-time location of the Mach-Zehnder（M-Z）perimeter protection systems improved

M-Z perimeter protection equipment set up and vibration signal location tests performed in a 6km-long cable with an accuracy of 21 mat a sampling rate of 20 MHz with the location calculated in less than 0.5s.The experimental results indicate that compared with the conventional Fast Fourier Transformer（FFT）algorithm

this algorithm calculates significantly faster.

关键词

西方快速傅里叶变换周界防护马赫-曾德互相关算法

Keywords

FFTWperimeter protectionM-Zcross-correlation algorithm

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