Research Article
An Efficient Porcine Acoustic Signal Denoising Technique Based on EEMD-ICA-WTD
Table 4
Denoising results of porcine scream.
| SNRin | Parameter | Denoising methods | EMD-TD | EMD-WTD | EEMD-TD | EEMD-WTD | WSTD | MBSS | EEMD-ICA-WTD |
| −10 | RMSE | 0.4794 | 0.3594 | 0.3952 | 0.3682 | 0.4319 | 0.7362 | 0.3389 | SNRout/dB | −3.9501 | −1.4474 | −2.2729 | −1.6579 | −3.0440 | −8.6582 | −1.0408 | R | 0.0633 | 0.3585 | 0.1723 | 0.3303 | 0.1762 | 0.0324 | 0.3701 |
| −5 | RMSE | 0.4379 | 0.3597 | 0.3774 | 0.3643 | 0.4101 | 0.5214 | 0.3339 | SNRout/dB | −3.1633 | −1.2094 | −1.8728 | −1.5668 | −2.5937 | −3.9452 | −0.8091 | R | 0.1449 | 0.5380 | 0.2498 | 0.5343 | 0.3897 | 0.1167 | 0.5544 |
| 0 | RMSE | 0.4497 | 0.2533 | 0.3389 | 0.2601 | 0.2867 | 0.3241 | 0.2496 | SNRout/dB | −3.3946 | 1.5894 | −0.9377 | 1.3619 | 0.5148 | −0.8852 | 1.4573 | R | 0.1972 | 0.7590 | 0.4029 | 0.7779 | 0.7683 | 0.7091 | 0.7810 |
| 5 | RMSE | 0.4460 | 0.1474 | 0.3483 | 0.1491 | 0.1506 | 0.1543 | 0.1432 | SNRout/dB | −3.3242 | 6.2958 | −1.1767 | 6.1937 | 6.1054 | 6.2438 | 6.4831 | R | 0.2381 | 0.9047 | 0.3955 | 0.9064 | 0.9029 | 0.8823 | 0.9145 |
| 10 | RMSE | 0.4315 | 0.0971 | 0.3321 | 0.0944 | 0.0935 | 0.0951 | 0.0913 | SNRout/dB | −3.0361 | 9.9147 | −0.7613 | 10.1594 | 10.2463 | 10.0864 | 10.3106 | R | 0.2038 | 0.9480 | 0.4088 | 0.9518 | 0.9531 | 0.9487 | 0.9569 |
|
|