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Real time filtering for EMG

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villanik

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I am working on a myoelectric control for a manipulative robot. I'm working on Matlab and was using a butterworth high-pass filter (2nd order, 30/500 Hz) to filter out ECG artefact. It works very well but am looking forward to transfer my programs in real time and I am looking for another highpass filter that would work rapidly without dephasing the signal.

Thank you
 

For EMG you can implement a FIR filter with the order that you want and can conservate the phase mainly if you apply an IIR will destroy the phase.
with a MC56F8025 is enough to implement this in realtime the EMG signal are slow signal in comparison with the DSP capability.
pls review the following link for a cheap CPU.
**broken link removed**
and it's vey easy to integrate with matlab using the FDA tool and fixed point toolkit.
 

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