首页 > 论文 > 光子学报 > 41卷 > 11期(pp:1274-1278)

不同采样方式下光纤布喇格光栅反射谱寻峰算法的分析

Analysis of Peak-detection Algorithms in Fiber Bragg Grating by Different Sampling Methods

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

对光纤布喇格光栅反射谱的三种寻峰算法(三次样条插值数值微分法、高斯-多项式拟合法和高斯拟合法)进行了分析和比较;相同采样情况下,得出了高斯拟合法确定的峰值准确度最高的结论;采样点数为250的均匀采样中,三种算法寻峰结果对实际值的误差分别为: 3.4 pm、13.0 pm和2.6 pm.引入了非均匀数据采集的寻峰思路,分别应用三种寻峰法对实际光栅的反射谱分别进行均匀采集和非均匀采集.结果表明,对于相同寻峰方法在非均匀数据采集下获得的峰值更精确,采样点数为250时,高斯拟合法寻峰时非均匀采集对应的误差比均匀采集减少了38.46%.

Abstract

Three peak-detection algorithms (cubic spline interpolation differential method, Gauss polynomial, Gaussian fitting algorithm) for fiber Bragg grating reflection spectrum were analyzed and compared. It is demonstrated that Gaussian fitting algorithm produces the lowest error under the same sampling conditions; when the uniform sampling number is 250, the errors of three peak-detection algorithms are respectively 3.4 pm, 13.0 pm and 2.6 pm. The idea of non-uniform data sampling method to search peak was proposed. Sample the actual FBG reflection spectrum with uniform and non-uniform sampling method, and search peak using the three peak-detection algorithms respectively. It can be concluded that the error of a certain algorithm by non-uniform sampling is lower than by uniform sampling method; when the sampling number is 250, FBG peak error of Gaussian fitting algorithm under non-uniform sampling method is reduced by 38.46% than uniform sampling method.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TP212.1

DOI:10.3788/gzxb20124111.1274

收稿日期:2012-03-31

修改稿日期:2012-07-30

网络出版日期:--

作者单位    点击查看

余有龙:合肥工业大学 仪器科学与光电工程学院,合肥 230009
王雪微:合肥工业大学 仪器科学与光电工程学院,合肥 230009
王浩:合肥工业大学 仪器科学与光电工程学院,合肥 230009

联系人作者:余有龙(youlongyu@163.com)

备注:余有龙(1965-),男,教授,博导,主要研究方向为光纤通信、光纤激光器以及光纤光栅传感器网络化.

【1】ZHANG W H, TONG Z R, MIAO Y P. Sensing and demodulation technique based on tilted fiber bragg grating[J]. Nanotechnology and Precision Engineering, 2008, 6(4): 284-287.

【2】余有龙.光纤光栅传感器及其网络化技术[M].哈尔滨:黑龙江科学技术出版社,2003:3-11.

【3】KERSEY A D, DAVIS M A, PATRICK H J, et al. Fiber grating sensors[J]. Journal of Lightwave Technology, 1997, 15(8): 1441-1463.

【4】LIU Q, WANG H. Research on the peak-detection algorithm in the high-frequency demodulation for the fiber bragg grating[J]. Journal of Wuhan University of Technology, 2010, 32(6): 59-61,88.

【5】ZHU H H, QIN H K, ZHANG M, et al. Peak-dectection algorithm in the demodulation for the fiber Bragg grating sensor system[J]. Chinese Journal of Lasers, 2008, 35(6): 893-897.

【6】LEE H W, SONG M. FBG interrogation with a scanning Fabry-Perot filter and Gaussian line-fitting algorithm[A]. LEOS[C]. 2005: 963-964.

【7】SONG H C, MIAO C Y, ZHANG C, et al. Aplication of wavelength demodulation algorithm on calculating body′s temperature in smart textile based on fiber bragg grating[A]. Image and Signal Processing[C]. 2009: 1-5.

【8】LI Y Q, XIE Y, YAO G Z. Comparison of peak searching algorithms for wavelength demodulation in fiber bragg grating sensors[A]. Information Engineering and Computer Science (ICIECS),[C]. 2010: 1-4.

【9】YANG Guang-xue, YIN Li-jing, KANG Shou-qiang. Reconstruction of FBG spectrum based on radial basis function network[J]. Transducer and Microsystem Technologies, 2007, 26(10): 12-14.
杨广学,尹丽静,康守强.基于径向基函数网络的FBG传感光谱的重构[J].传感器与微系统,2007,26(10):12-14.

【10】WU Fei, KUANG Min-min, ZHAO Jing, et al. Application of ant colony algorithm in analyzing of traverse uniform strain reflective spectrum of fiber bragg grating[J]. Chinese Journal of Lasers, 2010, 32(6): 477-483.
吴飞,邝敏敏,赵静,等.蚁群算法在光线布拉格光栅横向均匀受压反射谱分析中的应用[J].中国激光,2010,37(2):477-483.

【11】ZHU Min, ZHANG M, HU Li-zhang, et al. Peak-search algorithm for center wavelength detection in fiber Bragg gratings[J]. Study on Optical Communications, 2011,37(5): 60-63.
朱梅,张淼,胡立章,王梓蒴.光线布拉格光栅中心波长检测中的寻峰算法[J].光通信研究,2011:60-63.

【12】CHAN C C, JIN W, DEMOKAN M S. Enhancement of measurement accuracy in fiber Bragg grating sensors by using digital signal processing[J]. Optics & Laser Technology, 1999, 31(4): 3199-3307.

【13】金一庆,陈越.数值方法[M].北京:机械工业出版社. 2000:106-131.

【14】CHEN Qing-shan, L Nai-guang, YAN Bi-xi, et al. Analysis to the methods for calculating the center position of gaussian-distributed beam spot adopted in a laser alignment system[J]. Computer Automated Measurement and Control, 2004, 12(5): 486-488.
陈青山,吕乃光,燕必希,等.激光准直高斯光斑中心位置计算方法分析[J].计算机测量与控制,2004,12(5):486-488.

【15】ZOU Xi-hua, PAN Wei, LUO Bin, et al. Reflection peak wavelengths for sampled fiber Bragg gratings without chirp[J]. Acta Optica Sinica, 2007, 27(6): 971-976.
邹喜华,潘炜,罗斌,等.非啁啾取样光纤布拉格光栅反射峰值波长的分析[J].光学学报,2007, 27(6):971-976.

【16】BODENDORFER T, MULLER M S, HIRTH F, et al. Comparison of different peak detection algorithms with regards to spectrometic fiber bragg grating interrogation systems[C]. ISOT 2009, International Symposium on Optomechatronic Technologies, 2009: 122-126.

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF