岩土力学2017，Vol.38Issue(3)：911-917,924,8.DOI:10.16285/j.rsm.2017.03.037
特征点压缩算法在分布式光纤桩基检测中的应用
Application of feature point compression algorithm to pile foundation detection using distributed optical fiber
摘要
Abstract
Brillouin optical time domain reflectometer/analysis (BOTDR/A) is one kind of important distributed optical fiber sensing technology.Using the BOTDR/A-based distributed optical fiber technology to detect deformation of pile foundation,the vast amounts of detection data need smoothing and denoising.The paper introduces most frequently used embedded techniques of the sensing optical fiber,the characteristics of detection data,the role of massive data smoothing and denoising on the detection data handle and analysis.We developed the concept and proposed the implementation process of the feature point compression algorithm (a new smoothing and denoising method).Based on data measured from practical engineering,the smoothing and denoising effect of the method is analyzed,and its applicability is also verified.The results show that the proposed method is simple and efficient in processing the data from pile foundation detection,compared with the conventional algorithm,it can smooth and denoise data without losing the characteristics trend of detected data,and can achieve satisfactory results as expected.It can be applied to the distributed data processing of optical fiber pile foundation detection.关键词
桩基/分布式光纤检测/特征点压缩算法/数据平滑去噪Key words
pile foundation/distributed optical fiber detection/feature point compression algorithm/data smoothing and denoising分类
建筑与水利引用本文复制引用
苗鹏勇,王宝军,施斌,张其琪..特征点压缩算法在分布式光纤桩基检测中的应用[J].岩土力学,2017,38(3):911-917,924,8.基金项目
国家自然科学基金重点项目(No.41230636) （No.41230636）
国家重大科研仪器研制项目(No.41427801)国土资源部公益性行业科研专项(No.201511055-2).This work was supported by the Key Program of the National Natural Science Foundation of China (41230636),the Development Projects of National Major Scientific Research Instrument of China (41427801) and the Research Projects of Ministry of Land and Resources for the Public Welfare Industry in China(201511055-2). （No.41427801）
