摘要
A theoretical analysis was conducted on the intrinsic bond between multi-point responses caused by the same single vibration in phase sensitive optical time-domain reflectometer(OTDR). Temporal similarity of signals collected from adjacent sample locations were investigated. Referring to correlation coefficient as well as the relative energy level, a method of extracting disturbed position in φ-OTDR based on signal relevance evaluation is proposed to perform fast screening of massive φ-OTDR raw data to pinpoint those signals with significance.
基金
supported by the Research and Development of Natural Gas Pipeline Network and Station Intelligent Control System by China National Petroleum Corporation Limited (No.2021DJ7304)
the National Natural Science Foundation of China (No.62105307)。
