Dc off-set Analysis - Maatlab code

Hzaqa

Hi,

I am trying to use Matlab to analyse this raw signal by introducing Dc-offset analysis:


I used the following code :
a = [1 , -0.98]; b = [1,-1];
y = filtfilt(b,a,x);
figure
plot(y)

And the result :




But, I am trying to get a final result similar to the last graph,
Can you please tell methe exact code to achieve this:



Thank you very much

Attached Thumbnails

 

Hzaqa

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