TABLE 5. Maximum Displacement and its Dependent Features Extracted From the Tri-Axial Accelerometer.
| Signal | Extracted features |  |
 |
 |
 |
|---|---|---|---|---|---|
| ML | Bandwidth | − | − | − | + |
| Peak frequency | + | − | − | − | |
| SI | Spectral centroid | − | − | + | − |
| Entropy rate | − | + | − | − | |
| SS | Kurtosis | − | + | − | − |
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