Y Wakisaka, D Iida, Y Koshikiya… - Journal of Lightwave …, 2022 - opg.optica.org
To capture vibration waveforms whose frequencies exceed the limitation set by sensing fiber length in Φ–OTDR distributed vibration sensing (DVS), we propose a sampling rate …
S Qu, Z Liu, Y Xu, Z Cong, D Zhou, S Wang… - Journal of Lightwave …, 2019 - opg.optica.org
A sub-Nyquist random single-pulse sampling method based compressive sensing technique is proposed firstly to reconstruct signals under test in phase-sensitive optical time domain …
Y Wakisaka, H Takahashi, D Iida, Y Koshikiya - Optics Express, 2023 - opg.optica.org
We demonstrate Φ-OTDR distributed acoustic sensing (DAS) that realizes both a broad bandwidth for the vibration frequency and wide dynamic range for the vibration amplitude …
Y Kuang, HT Wu, JD Zhang, H Zhou… - Opto-Electronic …, 2018 - researching.cn
Based on the fiber's characteristics of both sensing and transmission for physical signal, distributed fiber sensing system can realize long-distance and continuous measurement of …