Low Computational Cost Distributed Acoustic Sensing Using Analog I/Q Demodulation

Low Computational Cost Distributed Acoustic Sensing Using Analog I/Q Demodulation

Distributed acoustic sensing based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) has been widely used in many fields. Phase demodulation of the Φ-OTDR signal is essential for undistorted acoustic measurement. Digital coherent detection is a universal method to imple...

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Bibliographic Details
Main Authors: Fei Jiang, Zixiao Lu, Feida Cai, Honglang Li, Zhenhai Zhang, Yixin Zhang, Xuping Zhang
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Sensors
Subjects:
distributed acoustic sensing
Φ-OTDR
phase demodulation
I/Q demodulation
Online Access:https://www.mdpi.com/1424-8220/19/17/3753

Internet

https://www.mdpi.com/1424-8220/19/17/3753

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