remove a specific frequency from emg signal
in [Matlab]
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From: Wayne King on 9 Aug 2010 08:04 "Debora " <debi_can(a)yahoo.com.br> wrote in message <i3opqd$t5i$1(a)fred.mathworks.com>... > Hey, all. > I have an emg signal that has a huge peak in a very low frequency, something between 0.5 and 1.2 hz. After filtering with a high pass butterworth of 20 hz and order 9, I could only reduce this peak, that is now half of its size, but still way higher then the signal. I've tried to change remove all signal under 5 Hz, but it did not work. Then, can anyone help me on how to remove a specific frequency on fft? > > Hope this is clear. > > Thank you. Hi Debora, do you the Filter Design Toolbox by any chance? Wayne |