Hi Everyone, I faced a problem to apply Wavelet for denoising ECG Signal I know there are three steps you have to do which are :
- Transform the noisy ECG signal to wavelet domain for finding DWT coefficients of each level (sub band).
- Apply thresholding to obtain the estimated wavelet coefficients for each level. It is possible to use different thresholding functions.
- Reconstruct the denoised ECG signal from the estimated wavelet coefficients by inverse DWT.but I am still cnofifusing please I am looking for you help.
my code is :
S=load('data.mat');y1=S.sig209;nsig = awgn(y1,15);sig1=y1+nsig; [CA,CD] = wavedec(sig1,5,'sym7');P = thselect(CA,'rigrsure'); CA= wthresh(CA,'s',P);Csig = idwt(CA,CD,'sym7');
Thank you for your help
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