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...
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Format: | Article |
Language: | zho |
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National Computer System Engineering Research Institute of China
2018-10-01
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Series: | Dianzi Jishu Yingyong |
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Online Access: | http://www.chinaaet.com/article/3000092191 |
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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 |