期刊
OPTICAL FIBER TECHNOLOGY
卷 16, 期 4, 页码 240-249出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2010.05.003
关键词
Structural health monitoring; Optical time domain reflectometer (OTDR); ForWaRD method; Wavelet
To improve the range resolution in inexpensive conventional long pulse optical time domain reflectometer (OTDR) for application in structural health monitoring (SHM) and robotic neural network, the Fourier Wavelet Regularized Deconvolution (ForWaRD) based on the adaptive wavelet method is employed. Since Deconvolution is a noise sensitive process, employing the (ForWaRD) method enhances the signal to noise ratio. Simulation for long pulse OTDR system is done and ForWaRD method is employed to improve the resolution of the OTDR system to the order of several centimeters. In this method the resolution is limited by the bandwidth of detector, bandwidth of electronic circuit, and the sampling rate of analog to digital convertor. (C) 2010 Elsevier Inc. All rights reserved.
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