46 citations · 50 across the 4 of their papers we have counts for
4 papers
Extending the dynamic strain sensing rang of phase-OTDR with frequency modulation pulse and frequency interrogation
Jingdong Zhang, Haoting Wu, Jingsheng Huang +4
We propose and experimentally demonstrate a technique to extend the dynamic sensing range of phase sensitive optical time domain reflectometry system based on the frequency interro…
Long range fading free phase-sensitive reflectometry based on multi-frequency NLFM pulse
Jingdong Zhang, Hua Zheng, Tao Zhu +5
A long range phase-sensitive optical time domain reflectometer (phi-OTDR) with a multi-frequency non-linear frequency modulation (NLFM) optical pulse is proposed in this Letter. To…
Distributed fiber sparse-wideband vibration sensing by sub-Nyquist additive random sampling
Jingdong Zhang, Hua Zheng, Tao Zhu +6
The round trip time of the light pulse limits the maximum detectable vibration frequency response range of phase-sensitive optical time domain reflectometry (ϕ-OTDR). Unlike the un…
Breaking through the bandwidth barrier in distributed fiber vibration sensing by sub-Nyquist randomized sampling
Jingdong Zhang, Tao Zhu, Hua Zheng +3
The round trip time of the light pulse limits the maximum detectable frequency response range of vibration in phase-sensitive optical time domain reflectometry (ϕ-OTDR). We propose…