Denoise an eog signal
5 次查看(过去 30 天)
显示 更早的评论
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 个评论
Image Analyst
2021-7-31
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?
回答(1 个)
Sulaymon Eshkabilov
2021-7-31
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)
0 个评论
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!