Table 3 Effect of different denoising functions on the quality of the simulated signal
From: An improved wavelet threshold denoising approach for surface electromyography signal
Denoising function | Quantitative metrics | |
|---|---|---|
SNR | MSE | |
Hard threshold(sqtwolog) | 9.5734 | 0.0079 |
Soft threshold(sqtwolog) | 5.9241 | 0.0183 |
Hard threshold(rigrsure) | 13.2785 | 0.0034 |
Soft threshold(rigrsure) | 12.4951 | 0.004 |
Hard threshold(heursure) | 13.3426 | 0.0033 |
Soft threshold(heursure) | 12.3653 | 0.0041 |
Hard threshold(minimaxi) | 12.0376 | 0.0045 |
Soft threshold(minimaxi) | 8.463 | 0.0102 |
Garrote threshold | 9.6412 | 0.0078 |
Improved threshold | 13.9215 | 0.0029 |