[問題] bandpass filter design?已回收
想請DSP高手filter問題~~
底下是ECG 256Hz的filter
data = data-mean(data);
denominator = 1;
numerator_lp =[
0.00116294818892327
0.0108214392935653
0.0200343666593651
0.0261187881634098
....];
numerator_hp = [
-0.007719806995443
-0.000593529464503111
-0.000616537270116216
-0.000639451830525362
....];
% low pass filter
aff_lp = filtfilt(numerator_lp,denominator,data);
filtdata = filtfilt(numerator_hp,denominator,aff_lp);
這樣就完成bandpass filter了~~
請問numerator_lp and numerator_hp裡面數值是怎麼得到的?
這裡不太了解~~
謝謝~~
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12/23 22:15, , 1F
12/23 22:15, 1F
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