Laser & Optoelectronics Progress, Volume. 54, Issue 10, 100604(2017)
Wavelet Transform Based Peak Localization of Overlapped Fiber Bragg Grating Signal
Peak localization is a critical step in processing fiber Bragg grating (FBG) reflected signal. Aiming at the feature of FBG reflected signal, we propose a peak detecting algorithm applied to FBG reflected signal to solve the peak overlapping problem in peak localization. According to the ridge peak detecting algorithm based on continuous wavelet transform, the correspondence between wavelet coefficients and FBG reflected signals is analyzed, and the ridge peak detecting algorithm is improved to find the peak of overlapped FBG reflected signal. The experimental result shows that the improved wavelet ridge peak detecting algorithm can effectively solve the peak overlapping problem of FBG reflected signal. Through this algorithm, the error of peak detecting can be reduced, and the accuracy of peak localization can be improved.
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Li Zhibin, Huang Qitao, Liu Chang, Xiong Jie. Wavelet Transform Based Peak Localization of Overlapped Fiber Bragg Grating Signal[J]. Laser & Optoelectronics Progress, 2017, 54(10): 100604
Category: Fiber Optics and Optical Communications
Received: Apr. 11, 2017
Accepted: --
Published Online: Oct. 9, 2017
The Author Email: Zhibin Li (thermal_li@163.com)