Title :
On adaptive wavelet packets
Author :
De Queiroz, Ricardo L. ; Rao, K.R.
Author_Institution :
Electr. Eng. Dept., Texas Univ., Arlington, TX, USA
Abstract :
An algorithm is presented for fast implementation of time-varying wavelet packets maintaining perfect reconstruction throughout transitions. It is based on filter banks known as the extended lapped transforms in an association following the paths of a binary-tree. Methods for pruning or expanding the branches of the tree are presented, and a discussion on adaptation issues is given
Keywords :
adaptive signal processing; filtering theory; signal reconstruction; wavelet transforms; adaptive wavelet packets; binary-tree; extended lapped transforms; filter banks; perfect reconstruction; pruning; time-varying wavelet packets; Algorithm design and analysis; Binary trees; Digital signal processing; Filter bank; Labeling; Signal processing algorithms; Signal resolution; Signal synthesis; Time frequency analysis; Wavelet packets;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393770
