Title :
A tutorial overview of filter banks, wavelets and interrelations
Author :
Gopinath, R.A. ; Burrus, C.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
Two channel filter banks (FBs) were developed for subband speech coding. Since then, FB theory has grown to include FBs with more than two channels and tree-structured FBs. A rich theory for the design and implementation of FBs exists. Wavelets were originally developed as an alternative to the STFT for non-stationary signal analysis. Since then it has been realized that this is one of several techniques for decomposition of non-stationary signals into time-frequency (TF) atoms. FBs and these TF decompositions (one discrete-time and the other continuous-time) are closely related theoretically and practically. This relationship is explored
Keywords :
filtering theory; speech coding; wavelet transforms; multichannel filter banks; nonstationary signal decomposition; subband speech coding; tree-structured banks; two channel filter banks; wavelets; Approximation error; Band pass filters; Channel bank filters; Filter bank; Signal analysis; Signal design; Speech coding; Time frequency analysis; Tutorial; Wavelet analysis;
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.1993.393668
