4NIKLES M. Long distance fiber optic sensing solutions for pipeline leakage, intrusion and ground movement detection. Proc of SPIE vol.7316 Fiber Optic Sensors and Applications VI, 2009: 731602.
5BROWN W. The development of a Brillouin Scattering Based on Distributed Fiber OpticStrain Sensor.New Brunswick: U- niversity of New Brunswick, 2000.
6JUAREZ J C, MAIER E W,CHOI K N, et al. Distributed fiber-optic intrusion sensors system. Journal of Lightwave Technology, 2005, 23( 6): 2081-2087.