Table 5 Statistical analysis before and after denoising.
From: Denoising research of shearer picks load signal based on MPE-VMD algorithm
Signal | max | mean | std |
|---|---|---|---|
Noisy signal under straight-ahead regular cutting conditions | 5867.8 | 1106.7 | 684.1 |
Denoised signal under straight-ahead regular cutting conditions | 5100.6 | 1106.7 | 639.5 |
Noisy signal under slant-cutting conditions | 2469.9 | 678.1 | 456.7 |
Denoised signal under slant-cutting conditions | 1983.3 | 678.1 | 443.6 |
