Table 1 Parameters setting for 50 Hz or 60 Hz powerline interference.
From: A smart approach to EMG envelope extraction and powerful denoising for human–machine interfaces
Parameters for 50 Hz PLI | Parameters for 60 Hz PLI | |
|---|---|---|
Raw EMG sampling frequency | 1000 Hz | 1200 Hz |
Number of FFC filter coefficients | 20 | 20 |
Lower cut-off frequency of FFC filter | ≈ 12 Hz | ≈ 15 Hz |
Number of samples of MA filter window for EMG-LE computing | 128 | 128 |
Upper cut-off frequency of MA filter for EMG-LE computing | ≈ 4 Hz | ≈ 5 Hz |
Data output frequency from the Arduino Bluetooth serial port | ≈ 8 Hz | ≈ 9 Hz |
