Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has attracted numerous
attention due to its superior performance in detecting the weak perturbations along the fiber …

Recently, phase-sensitive Optical Time-Domain Reflectometry (Φ-OTDR)-based vibration
sensor systems have gained the interest of many researchers and some efforts have been …

The optical fiber acoustic sensing system is suitable for long-distance monitoring of the
acoustic signals generated by the external disturbances. According to the continuity of …

An approach of phase-shift transform is proposed and demonstrated to suppress the
interference fading in phase sensitive optical time domain reflectometry (Φ-OTDR). The …

The measurement distance is one of the most important parameters for distributed acoustic
sensor (DAS). In this paper, we report a long-distance and high-sensitivity DAS system …

Distributed optical vibration sensors (DOVS) have attracted much attention recently since it
can be used to monitor mechanical vibrations or acoustic waves with long reach and high …

Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has been proposed for
distributed vibration sensing purpose over recent years. Emerging applications, including …

This paper aims to evaluate detection algorithms for perimeter security systems based on
phase-sensitive optical time-domain reflectometry (Φ-OTDR). Our own designed and …

Phase-sensitive optical time domain reflectometry (Φ-OTDR) realizes quantitative
measurement of the dynamic strain employing phase demodulation. Unfortunately, it is …

Optical fiber distributed acoustic sensing (DAS) based on phase sensitive optical time
domain reflectometry (φ-OTDR) has a great demand in many application fields with large …