Deng Dapeng1, Sheng Xing1, Zhang Bin1, et al. Research on an eavesdropping detection method in interferometric fiber-optic sensor systems[J]. 2011,(5):49-52.
Deng Dapeng1, Sheng Xing1, Zhang Bin1, et al. Research on an eavesdropping detection method in interferometric fiber-optic sensor systems[J]. 2011,(5):49-52. DOI: 10.13756/j.gtxyj.2011.05.014.
In view of the disadvantages of the threshold decision method in high false alarm rate and difficulty in distinguishing eavesdropping and intrusion from other artificial disturbances
this paper presents a feasible eavesdropping detection method on the basis of analyzing the eigenvector of interfering signals under different disturbances extracted by means of wavelet packet energy analysis.This method can effectively detect and distinguish eavesdropping from other artificial disturbances occurring in optical cable lines.