Pressure Wave Detection and Localization in Deployed Underground Fiber using Coherent Correlation OTDR
Florian Azendorf, Andr\'e Sandmann, Michael Eiselt
TL;DR
This paper presents a method using coherent correlation OTDR to detect and locate pressure waves in underground fiber optic cables, enabling monitoring of acoustic signals generated by external impacts.
Contribution
It introduces a novel application of coherent correlation OTDR for pressure wave detection and localization in underground fiber optic cables.
Findings
Successful detection of pressure wave origin and speed
Effective monitoring of hammer-generated acoustic signals
Potential for enhanced underground fiber monitoring
Abstract
A deployed fiber with in-house and underground sections is interrogated with a coherent correlation OTDR. The origin and propagation speed of a hammer-generated pressure wave in the underground section is detected and acoustic signals are monitored.
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Taxonomy
MethodsSPEED: Separable Pyramidal Pooling EncodEr-Decoder for Real-Time Monocular Depth Estimation on Low-Resource Settings