Haiyan XU, Qingkang KOU, Yingjuan XIE, Jun ZHU, Min LI. Feature Extraction Algorithm of Optical Fiber Vibration Signal Based on Compensation Distance Estimation[J]. Acta Photonica Sinica, 2022, 51(4): 0406001
- Acta Photonica Sinica
- Vol. 51, Issue 4, 0406001 (2022)
Fig. 1. MFCC 3 dimension feature map
Fig. 2. Time domain diagram of three kinds of signals
Fig. 3. CDET-score chart
Fig. 4. Classification accuracy under different dimensionality reduction dimensions of three kinds of signals
Fig. 5. Time consumption curve
Fig. 6. CDET-score chart under different signal-to-noise ratio
Fig. 7. Accuracy and accuracy difference under different signal-to-noise ratio
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Table 1. Classification accuracy of three types of signals
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Table 2. Characteristic dimensions at different thresholds
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Table 3. Classification accuracy under different signal-to-noise ratio
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