I am currently working on functional connectivity analysis of EEG, and need to bandpass filter my data into different frequency bands (Delta, Theta, Alpha and Beta). An important thing is that the filter doesn't cause phase distortion. I know a butterworth filter and processing the data in both the forward and reverse directions (e.g. with filtfilt in Matlab) is a good approach, however I was still wondering about the simple FFT/IFFT filtering approach. What are the exact disadvantages of this method? Does this method cause phase distortions? What are 'edge effects' that occur with this method?
Subscribe to:
Post Comments (Atom)
-
Sulfur reacts with sodium hydroxide in the following way: $\ce{3S + 6NaOH->2Na_2S + Na_2SO_3 + 3H_2O}$ It is a disproportionation reactio...
-
When do we use たくさん and when do we use 多い? I found both modifiers are used within similar sentences, for example: 人が多かったです 人がたくさんいました I had ...
-
As you know the Morlet wavelet function is given by: $$\frac{1}{\sqrt{\pi f_b}}e^{\frac{-t^2}{f_b}}e^{j2\pi f_c}$$ The Fourier transform of...
-
Which ring of anthracene is reduced during Birch Reduction? What will the final product look like? Why? My teacher said that the more electr...
No comments:
Post a Comment