Performance Improvement of Dual-Pulse Heterodyne Distributed Acoustic Sensor for Sound Detection

Phase fading is fatal to the performance of distributed acoustic sensors (DASs) influencing its capability of distributed measurement as well as its noise level. Here, we report the experimental observation of a strong negative correlation between the relative power spectrum density (PSD) at the het...

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Main Authors: Xiangge He, Min Zhang, Lijuan Gu, Shangran Xie, Fei Liu, Hailong Lu
Formato: Artigo
Idioma:Inglês
Publicado em: MDPI AG 2020-02-01
Colecção:Sensors
Assuntos:
distributed acoustic sensor
rayleigh backscattering
phase fading
sound detection
Acesso em linha:https://www.mdpi.com/1424-8220/20/4/999
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