| Comparative analysis of temporal-spatial and time-frequency features for pattern recognition of φ-OTDR |
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| 引用本文： | 孟凡然,张文祥,刘晓军,刘飞,周娴.Comparative analysis of temporal-spatial and time-frequency features for pattern recognition of φ-OTDR[J].Chinese Optics Letters,2023(4):6-13. |
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| 作者姓名： | 孟凡然 张文祥 刘晓军 刘飞 周娴 |
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| 作者单位： | School of Computer and Communication Engineering, University of Science and Technology Beijing |
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| 摘 要： | The phase-sensitive time-domain reflectometer φ-OTDR) has been popularly used for events detection over a long period of time. In this study, the events classification methods based on convolutional neural networks CNNs) with different features, i.e., the temporal-spatial features and time-frequency features, are compared and analyzed comprehensively inφ-OTDR. The developed CNNs aim at distinguishing three typical events: wind blowing, knocking, and background noise.The classification accuracy...
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