@inproceedings{50f143b9451841f190afbe135789f20c,
title = "Ultra long distance distributed fiber-optic system for intrusion detection",
abstract = "This paper research an ultra long distance distributed fiber-optic intrusion detects system. Laser source is amplified and modulated before input to the dual Mach-Zehnder interferometers. This ensures the system can detect longer distance with less loss and nonlinearity than continuous laser input. The cross correlation algorithm is considered to locate the vibration event after the polarization controlled of the optical source, and the locate precision is also discussed. Finally, an experiment result is given as the sensing fiber length is 112km with the location precision about 160m.",
keywords = "Cross correction, Distributed fiber-optic sensor vibration detect, Time delay estimation",
author = "Dongsheng Tu and Shangran Xie and Zhaogong Jiang and Min Zhang",
year = "2012",
doi = "10.1117/12.2001292",
language = "English",
isbn = "9780819493163",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Advanced Sensor Systems and Applications V",
note = "Advanced Sensor Systems and Applications V ; Conference date: 05-11-2012 Through 06-11-2012",
}