Denoising Method for Vibrating System of Fiber Grating Based on Wavelet Singular Value Decomposition
Aiming at the deficiency of wavelet threshold denoising for vibrated signal of non-uniform noise distribution, a method based on Singular Value Decomposition and wavelet threshold de-noising is presented.The matrix with vibrated signal and signal of non-uniform noise is made by rapture method, and the non-uniform noise is decomposed averagely into several orthogonal subspaces by singular value decomposition.The signal which is rebuilt by the subspace with maximal singular value is de-noised with wavelet threshold de-noising method.The results show that the proposed method, compared with wavelet threshold denoising is an efficient tool to extract useful component with less distortion.
fiber grating vibrating Singular Vale Decomposition (SVD) wavelet threshold de-noising
LI Jing FENG Zhen LIU Jia LIU Wei WANG Zhen-zhou
Dept.of Information Engineering Shijiazhuang Institute of Railway Technology Shijiazhuang,China Dept.of Control Science and Engineering Hubei Normal University Huangshi,China Dept.of Mathematics Hebei Vocational College of Chemical and Pharmaceutical Technology Shijiazhuang, Dept.of Information Science and Engineering Hebei University of Science and Technology Shijiazhuang,
国际会议
太原
英文
540-543
2011-02-26(万方平台首次上网日期,不代表论文的发表时间)