Cost-effective FBG interrogation combined with cepstral-based signal processing for railway traffic monitoring

D. Kinet; G. Kouroussis; J. Dupuy; V. Moeyaert; O. Verlinden; C. Caucheteur

doi:10.1117/12.2227681

29 April 2016 Cost-effective FBG interrogation combined with cepstral-based signal processing for railway traffic monitoring

D. Kinet, G. Kouroussis, J. Dupuy, V. Moeyaert, O. Verlinden, C. Caucheteur

Author Affiliations +

Proceedings Volume 9899, Optical Sensing and Detection IV; 989915 (2016) https://doi.org/10.1117/12.2227681
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Due to their high mechanical and corrosion resistance, low signal attenuation, optical fiber sensors and more particularly fiber Bragg gratings (FBGs) have demonstrated their high potential in various sensors applications such as health monitoring of structural pieces when their are placed under constrain, vibration or temperature variation. In this paper, we evaluate the capability of a low cost optical fiber Bragg gratings interrogator, based on the edge filter demodulation technique, combined with a cepstral-based signal processing to address three cascaded FBGs along a railway track. We show in real-life conditions that, thanks to this method, it is possible from a noisy measurement to retrieve the speed of the trains.

Citation Download Citation

D. Kinet, G. Kouroussis, J. Dupuy, V. Moeyaert, O. Verlinden, and C. Caucheteur "Cost-effective FBG interrogation combined with cepstral-based signal processing for railway traffic monitoring", Proc. SPIE 9899, Optical Sensing and Detection IV, 989915 (29 April 2016); https://doi.org/10.1117/12.2227681

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