Classification of interference-fading tolerant Φ-OTDR signal using optimal peak-seeking and machine

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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 ordinary single-mode sensing fiber without changing the structure of the traditional Φ-OTDR system.Based on the data after interference suppression,we applied different machine learning models to recognize the invasive events category.The promising results show potential applications of Φ-OTDR equipment and future implementation with machine learning algorithms.
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