Design and implementation of fiber-optic vibration positioning system based on FPGA

Aiming at the problem that the perimeter of defense zone can’t be located in real time when it is invaded, this paper designed and realized a real-time distributed optical fiber vibration positioning system. The optical path was built on the basis of Mach-Zehnder fiber interference technique,FPGA co...

Full description

Bibliographic Details
Main Authors: Luo Yijun, Fang Li
Format: Article
Language:zho
Published: National Computer System Engineering Research Institute of China 2018-10-01
Series:Dianzi Jishu Yingyong
Subjects:
Online Access:http://www.chinaaet.com/article/3000092191
_version_ 1818926449078304768
author Luo Yijun
Fang Li
author_facet Luo Yijun
Fang Li
author_sort Luo Yijun
collection DOAJ
description Aiming at the problem that the perimeter of defense zone can’t be located in real time when it is invaded, this paper designed and realized a real-time distributed optical fiber vibration positioning system. The optical path was built on the basis of Mach-Zehnder fiber interference technique,FPGA combined with high speed ADC was used as hardware platform to transform and collect the two signals from the optical path,then the cross correlation was taken as the main algorithm to process the acquired signal to get the vibration position. Tested on a 160-meter fiber, the system can give the vibration position within 500 ms after the vibration occurred. Seting the sampling rate to 10 MHz and after multiple positioning test, the actual positioning error of the system is ±10 m. And the positioning does not need the upper computer, which improves the device portability and reduces the cost.
first_indexed 2024-12-20T02:57:17Z
format Article
id doaj.art-a5262f93f2444e2c859dad76187c7a1a
institution Directory Open Access Journal
issn 0258-7998
language zho
last_indexed 2024-12-20T02:57:17Z
publishDate 2018-10-01
publisher National Computer System Engineering Research Institute of China
record_format Article
series Dianzi Jishu Yingyong
spelling doaj.art-a5262f93f2444e2c859dad76187c7a1a2022-12-21T19:55:53ZzhoNational Computer System Engineering Research Institute of ChinaDianzi Jishu Yingyong0258-79982018-10-014410606310.16157/j.issn.0258-7998.1810723000092191Design and implementation of fiber-optic vibration positioning system based on FPGALuo Yijun0Fang Li1Electronic Information School,Wuhan University,Wuhan 430072,ChinaElectronic Information School,Wuhan University,Wuhan 430072,ChinaAiming at the problem that the perimeter of defense zone can’t be located in real time when it is invaded, this paper designed and realized a real-time distributed optical fiber vibration positioning system. The optical path was built on the basis of Mach-Zehnder fiber interference technique,FPGA combined with high speed ADC was used as hardware platform to transform and collect the two signals from the optical path,then the cross correlation was taken as the main algorithm to process the acquired signal to get the vibration position. Tested on a 160-meter fiber, the system can give the vibration position within 500 ms after the vibration occurred. Seting the sampling rate to 10 MHz and after multiple positioning test, the actual positioning error of the system is ±10 m. And the positioning does not need the upper computer, which improves the device portability and reduces the cost.http://www.chinaaet.com/article/3000092191fpgaoptical fiber vibrationcross-correlationpositioning
spellingShingle Luo Yijun
Fang Li
Design and implementation of fiber-optic vibration positioning system based on FPGA
Dianzi Jishu Yingyong
fpga
optical fiber vibration
cross-correlation
positioning
title Design and implementation of fiber-optic vibration positioning system based on FPGA
title_full Design and implementation of fiber-optic vibration positioning system based on FPGA
title_fullStr Design and implementation of fiber-optic vibration positioning system based on FPGA
title_full_unstemmed Design and implementation of fiber-optic vibration positioning system based on FPGA
title_short Design and implementation of fiber-optic vibration positioning system based on FPGA
title_sort design and implementation of fiber optic vibration positioning system based on fpga
topic fpga
optical fiber vibration
cross-correlation
positioning
url http://www.chinaaet.com/article/3000092191
work_keys_str_mv AT luoyijun designandimplementationoffiberopticvibrationpositioningsystembasedonfpga
AT fangli designandimplementationoffiberopticvibrationpositioningsystembasedonfpga