脑电信号 Resources

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FFT spectrum analysis enables effective extraction of EEG signals from different frequency bands. The extracted EEG waveforms (α, β, θ, δ) can be utilized for diagnosing neurological disorders and analyzing brain electrical activity and functional states. The implementation involves: 1. Converting experimental EEG data files to text format with 50Hz notch filtering, resulting in Matlab-compatible data files like 0661.txt. 2. Importing data into Matlab, extracting Fp1 channel EEG signals, performing FFT transformations to isolate frequency bands, and applying inverse FFT for time-domain reconstruction. 3. Calculating power spectrum density for each frequency band to quantify signal characteristics.

MATLAB 216 views Tagged