wprec

Wavelet packet reconstruction 1-D

Syntax

x = wprec(tobj)

x = wprec(tobj) returns the reconstructed vector x corresponding to the wavelet packet tree object tobj.

Load a signal.

load noisdopp
x = noisdopp;

Decompose the signal at level 3 with sym4 wavelet packets using log energy entropy.

wpt = wpdec(x,3,'sym4','log energy');

Reconstruct the signal from the wavelet packet tree object.

xrec = wprec(wpt);

Compare the original signal with the reconstruction.

max(abs(xrec-x))

ans = 8.2778e-12

Wavelet packet tree, specified as a wavelet packet tree object. The wprec function assumes that you obtained tobj using wpdec.