基于小波包分解和SVM的φ-OTDR系统信号识别 卜泽华

and noise signal are all 100%. The overall Р recognition accuracy is above 97%. The method improves the accuracy and real-time performance Р of the recognition results in the signal recognition of phase sensitive optical-time domain Р reflectometer system. Р Р Keywords: Phase-sensitive optical time domain reflectometer; Signal recognition; Wavelet packet Р decomposition; Support vector machine; Energy feature vector Р OCIS Codes: 060.2310; 060.2370; 070.4340; 070.5010 Р Р Foundation item: National Key Research and Development Program of China (No.2020YFF0217801) Р