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 h...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.展开更多
基金supported by the National Natural Science Foundation of China (Nos. 61627816 and 61975076)the Beijing Natural Science Foundation (No. 4192042)+2 种基金the Key Research and Development Program of Jiangsu Province (No. BE2018047)the Natural Science Foundation of Jiangsu Province (No. BK20180328)the Key Technology R&D Program of Inner Mongolia Autonomous Region。
文摘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.
