Denoise an eog signal
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I have a noisy eog signal and I want to clear it but I'm not familiar with different filters. I've tried wavelet denoising toolbox but i couldn't see much change in my signal. I've attached the mat file.
any help will be appreciated.
2 comentarios
Image Analyst
el 31 de Jul. de 2021
I don't know what EOG is. What part of those signals is supposed to be noise and what part is good signal? Are those time domain signals or spectra?
Star Strider
el 31 de Jul. de 2021
Respuestas (1)
Sulaymon Eshkabilov
el 31 de Jul. de 2021
There are a few different filters to test with your data, e.g. data smooting, moving average, Savitzky-Golay, etc. You can test these ones by tuning and play with others, such as low-pass, band-pass filters.
figure
subplot(211)
plot(y1,'b')
y1_s=smoothdata(y1, 'sgolay');
hold on
plot(y1_s, 'r')
subplot(212)
plot(y2)
y2_s=smoothdata(y2, 'movmean', 50);
hold on
plot(y2_s)
figure
subplot(211)
plot(y3)
y3_s=smoothdata(y3, 'gaussian', 35);
hold on
plot(y3_s)
subplot(212)
plot(y4)
y4_s=smoothdata(y4, 'rlowess');
hold on
plot(y4_s)
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