Continuous wavelet transform for non-stationary vibration detection with phase-OTDR

Zengguang Qin; Liang Chen; Xiaoyi Bao

doi:10.1117/12.975025

7 November 2012 Continuous wavelet transform for non-stationary vibration detection with phase-OTDR

Zengguang Qin, Liang Chen, Xiaoyi Bao

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421A0 (2012) https://doi.org/10.1117/12.975025
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

This paper proposed using continuous wavelet transform to analyze the non-stationary vibration in the distributed vibration sensor based on phase optical time domain reflectometry (OTDR). The continuous wavelet transform approach allows detection of both the frequency and time information of vibration simultaneously. Distributed vibration measurements of 200Hz and 200 Hz to1 kHz sweep events over 20cm length have been demonstrated using the single mode fiber.

Citation Download Citation

Zengguang Qin, Liang Chen, and Xiaoyi Bao "Continuous wavelet transform for non-stationary vibration detection with phase-OTDR", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421A0 (7 November 2012); https://doi.org/10.1117/12.975025

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