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光纤振动信号的二维二级检测算法

Two-Level Detection Algorithm of Two-Dimensional for Vibration Signals Detected by Optical Fiber

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摘要

在光纤振动信号检测系统中,使用相位敏感光时域反射技术,可检测长距离的光纤振动信号,但反射回的光信号都有大量的振动杂波和噪声,导致振动检测信号的虚警率较高。提出采用单元平均恒虚警(CA-CFAR)和有序统计恒虚警(OS-CFAR)二级检测算法,保持虚警率稳定,既提高了运算速度,也改善了参考单元中存在多个目标的检测性能,并提出利用蒙特卡罗方法确定二级检测的门限系数,最后通过蒙特卡罗仿真及现场实验验证,对算法进行了性能分析,验证了算法的可行性以及有效性。

Abstract

In the detection system, the long distance optical fiber vibration can be detected by phase-sensitive optical time domain reflect technique. However, the reflected signals include clutters and noises, which leads to a high false alarm rate. A two- level detection algorithm, which can maintain constant false alarm rate, is proposed, including cell average constant false alarm rate (CA- CFAR) and ordered statistics constant false alarm rate (OS- CFAR) which work in serial ways, and the detection speed of CA- CFAR and the performance of OS-CFAR are conserved, respectively. Monte Carlo simulation is applied to determine the threshold of twolevel detection. Finally, Monte Carlo simulation and the experiment on the scene are applied to analyze the performance of the algorithm, which proves the feasibility and effectiveness.

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中图分类号:TN914

DOI:10.3788/aos201535.1006004

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金(61571014)

收稿日期:2015-04-16

修改稿日期:2015-06-05

网络出版日期:--

作者单位    点击查看

曲洪权:北方工业大学电子信息工程学院, 北京 100144
任学丛:北方工业大学电子信息工程学院, 北京 100144
毕福昆:北方工业大学电子信息工程学院, 北京 100144
刘大年:北方工业大学电子信息工程学院, 北京 100144
张常年:北方工业大学电子信息工程学院, 北京 100144

联系人作者:曲洪权(qhqphd@163.com)

备注:曲洪权(1973—),男,博士,教授,主要从事光纤振动信号处理、CFAR 检测方面的研究。

【1】Yang Wei, Yang Yuanhong. Digital envelope detection technique for Brillouin optical time- domain reflectometry based on generalized harmonic wavelet transform[J]. Acta Optica Sinica, 2013, 33(5): 0506004.
杨巍, 杨远洪. 基于广义谐波小波变换的布里渊光时域反射计的数字包络解调技术[J]. 光学学报, 2013, 33(5): 0506004.

【2】An Yang, Feng Hao, Zhang Jingchuan, et al.. Phase sensitive optical time domain reflectometer based on two-beam interference[J]. Acta Optica Sinica, 2013, 33(7): 0706005.
安阳, 封皓, 张景川, 等. 基于双光束干涉的相位敏感光时域反射计[J]. 光学学报, 2013, 33(7): 0706005.

【3】Liu Jianxia. Research progress of distributed optical fiber sensing and monitoring technology based on Φ- OTDR[J]. Laser & Optoelectronics Progress, 2013, 50(8): 080021.
刘建霞. Φ-OTDR 分布式光纤传感监测技术的研究进展[J]. 激光与光电子进展, 2013, 50(8): 080021.

【4】Yang Jiang, Zhao Jian, Yang Chunni, et al.. All-fiber perimeter security system based on Michelson interferometer and pattern recognition[J]. Chinese J Lasers, 2014, 41(11): 1105005.
杨江, 赵健, 杨春妮, 等. 基于迈克耳孙干涉和模式识别的全光纤周界安防系统[J]. 中国激光, 2014, 41(11): 1105005.

【5】Finn H M, Johnson R S. Adaptive detection mode with threshold control as a function of spatially sampled clutter level estimates[J]. RCA Review, 1968, 29(3): 414-464.

【6】Weiss M. Analysis of some modified cell-averaging CFAR processors in multiple-target situations[J]. IEEE Transaction on AES, 1982, 18(1): 102-114.

【7】Richard J T, Dillard G M. Adaptive detection algorithms for multiple target situations[J]. IEEE Transaction on AES, 1977, 13(4): 338-343.

【8】Ritcey J A. Performance analysis of the censored mean-level detector[J]. IEEE Transaction on AES, 1986, 22(4): 443-454.

【9】Rohling H. Radar CFAR thresholding in clutter and multiple target situations[J]. IEEE Transaction on AES, 1983, 19(3): 608-621.

【10】Gandhi P P, Kassam S A. Analysis of CFAR processors in nonhomogeneous background[J]. IEEE Transaction on AES, 1988, 24(4): 427-445.

【11】He You, Guan Jian, Rohling H. Two new CFAR detectors based on greatest of and smallest of selection[J]. Systems Engineering and Electronics, 1995, 17(7): 6-16

【12】P P Gandhi, S A Kassam. Analysis of CFAR processors in nonhomogeneous background[J]. IEEE Transactions on AES, 1988, 24(4): 427-445.

【13】He You, Guan Jian, Peng Yingning. A new CFAR detector based on order statistic and cell averaging[C]. CIE 1996 International Radar Conference, Beijing, 1996: 106-108.

【14】He You, Guan Jian. A new CFAR detector with greatest of selection[C]. IEEE 1995 International Conference on Radar, Alexandria, 1995: 589-591.

引用该论文

Qu Hongquan,Ren Xuecong,Bi Fukun,Liu Danian,Zhang Changnian. Two-Level Detection Algorithm of Two-Dimensional for Vibration Signals Detected by Optical Fiber[J]. Acta Optica Sinica, 2015, 35(10): 1006004

曲洪权,任学丛,毕福昆,刘大年,张常年. 光纤振动信号的二维二级检测算法[J]. 光学学报, 2015, 35(10): 1006004

被引情况

【1】 曲洪权, 宫殿君, 张常年, 王彦平. 光纤入侵信号的特征提取与识别算法. 激光与光电子学进展, 2019, 56(13): 130601--1

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