Need help in filtering ECG (R-peaks) from Head signal recordings
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I am kind of new to signal processing. I am working on a code to detect ECG (R-peaks) from the head recordings. Various research papers have suggested the usage of bandpass filter (4Hz-20Hz , 8Hz-20HZ) for QRS complex. However I would just like to filter the R-wave only from the head recordings. In my code I hv used IIR butterworth bandpass filter with 4HZ-20Hz, it works almost all the time for chest ECG but not for head-ECG(as u can see from my attached 4 sample recordings: asitrest, ksitrest, ositrest, tsitrest, jsitrest.
1)Therefore, please suggest me the usage of appropriate frequency range for head ECG-R peak and also appropriate filter configuration. 2)If the head ecg is corrupted or fall in same frequency range with other signals from the head such as eeg,eog,emg & etc, please propose a solution to just extract just head ecg from this head recording. Code example will help me alot. Thanks.
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Abhishek Ballaney
am 22 Feb. 2018
https://in.mathworks.com/help/wavelet/ug/r-wave-detection-in-the-ecg.html
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