Interference fading suppression method for φ-OTDR based on time-distance dual-domain phase differential.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.572197
Abstract: To mitigate interference fading induced by phase randomness in multi-beam interference in phase-sensitive optical time-domain reflectometry (φ-OTDR), we present a time-distance dual-domain phase differential method (TDPD) that reconstructs constructive interference conditions for complex optical wave… read more here.
Keywords: distance; time; interference fading; phase ... See more keywords
Classification of interference-fading tolerant Φ-OTDR signal using optimal peak-seeking and machine learning [Invited]
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Optics Letters"
DOI: 10.3788/col202119.030601
Abstract: A simple and effective interference-fading tolerant method for phase-sensitive optical time-domain reflectometry (Φ-OTDR) using optimal peak-seeking is proposed. This method can reconstruct the vibration signal with high fidelity under the premise of using only an… read more here.
Keywords: using optimal; fading tolerant; interference fading; interference ... See more keywords