Filtering 50Hz frequency

1 visualización (últimos 30 días)

M G el 7 de Mzo. de 2011

Hi there,

Please could you give me a hint how I can eliminate the 50Hz frequency (electricity noise) from my eeg signals?

By FT? If so, how?

I appreciate your help.

Walter Roberson el 7 de Mzo. de 2011

fft would be one method: fft the signal, find the bin that corresponds to 50 Hz, zero that entry (and its mirror) and ifft() back.

More commonly you would use a band-stop filter.

Sciences Neuroscience Human Brain Mapping EEG/MEG/ECoG

Más información sobre EEG/MEG/ECoG en Help Center y File Exchange.

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by