Event Detection and Location in OTDR Data

The techniques of monitoring optical cables are discussed. An event analysis algorthm based on Gabor transform is given and its performances are analyzed as well. The algorithm theoretically requires a certain SNR value, that is ,r_(s,n) must be more than 20 dB with the accuracy of judgement greater than 90%, but this range can be reached in real appliction, which means the algorithm is much more applicable.