Broadening Frequency Response Of Distributed Sparse-Wideband Vibration Sensing Via Time-Division Multi-Frequency Sub-Nyquist Sampling

Shuai Qu,Zhigang Zhao,Yanping Xu,Zhaojun Liu,Zhenhua Cong,Shang Wang,Zhao Li,Heng Wang,Zengguang Qin

OPTICS EXPRESS（2020）

引用 9|浏览39

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摘要

A sub-Nyquist sampling sequence with an average repetition rate less than 5-kHz can be efficiently utilized to detect 24-kHz sparse-wideband vibration signal along 4.5-km sensing fiber and recover its frequency information via compressive sensing technique. (C) 2020 The Author(s)

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关键词

broadening frequency response,distributed sparse-wideband vibration sensing,sub-Nyquist sampling sequence,repetition rate,24-kHz sparse-wideband vibration signal,4.5-km sensing fiber,frequency information,compressive sensing technique,time-division multifrequency sub-Nyquist sampling,size 4.5 km

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