MU Li-bo, WU Yue-feng, YAO Jian. Study on multiple-point localization problem of distributed fiber-optic vibration-sensing systems[J]. 2010, 29(6): 42-45+49.
MU Li-bo, WU Yue-feng, YAO Jian. Study on multiple-point localization problem of distributed fiber-optic vibration-sensing systems[J]. 2010, 29(6): 42-45+49. DOI: 10.13873/j.1000-97872010.06.026.
The multiple-point localization problem of three kinds of distributed vibration sensing systems is studied.The reason why it is not easy for Sagnac interferometer to realize multiple-point localization is explained.The principle and limitation of multiple-point localization for dual path Mach-Zehnder interferometer system are analyzed
and the failure of two-point localization is testified by simulation.The principle and feasibility of multiple-point localization realized by Φ-OTDR system were described.Moreover
spatial resolution and localization precision of the last two systems are discussed.