05-14-2013 08:39 AM - edited 05-14-2013 08:41 AM
Hi,
I'm using the Advanced signal processing toolkit which I has the wavelet analysis VI's. I would like to perform a Wavelet Transfom of a signal, display the detail coefficients and the approximation coefficients and then perform and inverse DWT. As you can see I have no trouble with the DWT and I'm able to display the coefficients as desired. The next part I want to do is to reconstruct the signal leaving out some of the coefficient, e.g, the coefficients containing the noise, usually the lowest ones.
05-14-2013 11:08 AM
How about imlpementing a Low-Pass filter to filter out lower unwanted frequencies/noise?
05-14-2013 09:11 PM
I could add a low pass filter IIR to my data but the pourpose of this excersice is to use of the DWT to exactract useful information about a signal, e.g. feature extraction. What I also want to do is take one of the peaks observed at the coefficients and map it back to the original signal's time domain.
05-17-2013 09:30 AM
Anybody can help? Still stuck with this problem...
05-02-2016 04:46 AM