Finding high and low frequency noise....

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Tinkul
Tinkul 2014년 5월 3일
답변: Star Strider 2014년 5월 3일
Is power line interference high frequency noise in ecg and base line wandering low frequency noise in ecg? Is both the noise present in EMG and EEG signal?
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Tinkul
Tinkul 2014년 5월 3일
it is biomedical signal processing question..
Image Analyst
Image Analyst 2014년 5월 3일
OK, but do you have a MATLAB question for this MATLAB forum? If you do, attach your m-file. http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

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Star Strider
Star Strider 2014년 5월 3일
Powerline noise can appear in poorly-instrumented EMG and EEG signals. The usual way to deal with this in hardware is to have a good subject reference ground, no ground faults (patient ground and instrument ground are the same), and to use shielded cables.
You can get rid of the 50-60 Hz noise in the recorded signal using a digital notch filter. Baseline wandering is usually dealt with by using an appropriately-designed bandpass filter.

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