How to define line code to block Frequency EEG based on specific range?

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MOUSTADRANE 2024-5-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2120421-how-to-define-line-code-to-block-frequency-eeg-based-on-specific-range

回答： Manikanta Aditya 2024-5-20

采纳的回答： Manikanta Aditya

I am new on mathalab and programmation, I am loocking for a base script to lock specific range of EEG frequency.

I would like :

to create a script able to detect the frequency from 0 to 20 Hz.

to block some of this frquency.

Thank you for help.

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Manikanta Aditya 2024-5-19

在 MATLAB Online 中打开

Just as a starting point of help you can refer this:

% Assuming 'eegData' is your EEG data and 'Fs' is the sampling frequency
eegData = ...; 
Fs = ...; 
% Design a bandpass filter that passes frequencies between 0 and 20 Hz
d = designfilt('bandpassiir', 'FilterOrder', 20, ...
               'HalfPowerFrequency1', 0, 'HalfPowerFrequency2', 20, ...
               'SampleRate', Fs);
% Apply the filter to the EEG data
filteredEegData = filtfilt(d, eegData);

MOUSTADRANE 2024-5-19

Thank you very much, it s help full !

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Answer 1

Manikanta Aditya 2024-5-20

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2120421-how-to-define-line-code-to-block-frequency-eeg-based-on-specific-range#answer_1460071

在 MATLAB Online 中打开

Hi @MOUSTADRANE,

Refer this code as a starting point:

% Assuming 'eegData' is your EEG data and 'Fs' is the sampling frequency
eegData = ...; 
Fs = ...; 
% Design a bandpass filter that passes frequencies between 0 and 20 Hz
d = designfilt('bandpassiir', 'FilterOrder', 20, ...
               'HalfPowerFrequency1', 0, 'HalfPowerFrequency2', 20, ...
               'SampleRate', Fs);
% Apply the filter to the EEG data
filteredEegData = filtfilt(d, eegData);