Distributed acoustic sensing (DAS) technology can detect acoustic or vibration signals with
high sensitivity and wide dynamic range by receiving the phase information from coherent …

Distributed acoustic sensing system can be used in the long-distance and strong-EMI
condition for monitoring and inspection. In this paper, location method for optical fiber …

This study proposes a multiple intrusion event recognition scheme in a fiber optic distributed
acoustic sensing (DAS) system. The variational mode decomposition (VMD) algorithm is …

The mixed intrusion events recognition is still a challenging problem in optical fiber
perimeter security with distributed acoustic sensing (DAS), because the vibration signals will …

Distributed fiber-optic acoustic· vibration sensing technology is becoming increasingly
popular in many industrial and academic areas such as in securing large edifices, exploring …

To reduce the high false alarm rate of the distributed fiber intrusion monitoring system in
outdoor complex environment, this study proposes and demonstrates an intrusion event …

An intrusion events recognition method by incremental learning is proposed and
demonstrated. Assisted with fiber optic distributed acoustic sensing (DAS) system, the …

The intrusion events in the optical fiber pre-warning system (OFPS) are divided into two
types which are harmful intrusion event and harmless interference event. At present, the …

Aiming at the pattern recognition of disturbance events in distributed optical fiber sensing
systems, a multi-dimensional feature extraction method of optical fiber sensing signals is …

Due to the poor generalization performance of the artificial intelligence recognition models,
high false alarm rate (FAR) is still a challenge for intrusion events recognition with fiber optic …