Research Article
Noncontact Detection and Analysis of Respiratory Function Using Microwave Doppler Radar
Table 2
Polynomial modelling and DTW performance evaluation.
(a) Polynomial order evaluation |
| Order | Inhalation | Exhalation | RMSE | Corr | RMSE | Corr |
| 1 | | 0.9912 | | 0.9918 | 2 | | 0.9921 | | 0.9919 | 3 | | 0.9998 | | 0.9999 | 4 | | 1 | | 1 | 5 | | 1 | | 1 |
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(b) Performance evaluation of random breathing component with selected model |
| Breathing component | Polynomial model | MSE | Corr | Class |
| Fast inhalation | Normal | | 0.933 | Fast | Fast | | 0.989 |
| Normal inhalation | Normal | | 0.999 | Normal | Fast | | 0.954 |
| Fast exhalation | Normal | | 0.972 | Fast | Fast | | 0.999 |
| Normal exhalation | Normal | | 0.999 | Normal | Fast | | 0.958 |
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