From: Robust EMG sensing system based on data fusion for myoelectric control of a robotic arm
Filtering with a 6th order Butterworth Bandpass filter (10 Hz–500 Hz). | emg filt (k) = filter (emg raw (k)) |
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Normalization with respect to MVC | |
Full-wave rectification | emg rect (k) = abs (emg norm (k)) |
Background noise removing Symmetric Dead Zone BNT = Background Noise Threshold | emg(k) = DeadZone(emg norm (k)) = if abs (emg norm (k)) ≥ BNT; emg(k) = emg norm (k) otherwise emg(k) = 0 |