DocumentCode
3066885
Title
Complex quadrature mirror filters
Author
Nussbaumer, N.J.
Author_Institution
Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
Volume
8
fYear
1983
fDate
30407
Firstpage
221
Lastpage
223
Abstract
This paper introduces a technique for the decomposition of a signal into N adjacent sub-bands uniformly spaced in the frequency domain. Each subband is in turn converted into two channels in quadrature subsampled by 1/2 N. It is then shown how the original input signal may be perfectly reconstructed from the 2 N channels, and a practical implementation is suggested. Potential applications to speech compression are discussed.
Keywords
Band pass filters; Bandwidth; Channel bank filters; Digital signal processing; Filtering; Frequency domain analysis; Low pass filters; Mirrors; Speech analysis; Speech synthesis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '83.
Type
conf
DOI
10.1109/ICASSP.1983.1172207
Filename
1172207
Link To Document