DocumentCode
2674356
Title
Effects of finite word length in two-channel QMF banks
Author
Abdel-Raheem, E. ; Tawfik, A. ; El-Guibaly, F.
Author_Institution
Dept. of Electron. & Commun. Eng., Ain Shams Univ., Cairo, Egypt
fYear
1998
fDate
5-6 Jun 1998
Firstpage
144
Lastpage
148
Abstract
Finite word-length effects in multirate two-channel quadrature mirror filter (QMF) banks are presented. Aliasing cancellation, amplitude and/or phase distortions, and the perfect-reconstruction property due to finite-precision effects are investigated. A finite-precision model is applied to several types of QMF banks and the results are reported
Keywords
FIR filters; band-pass filters; digital arithmetic; electric distortion; filtering theory; noise; quadrature mirror filters; roundoff errors; signal reconstruction; aliasing cancellation; amplitude distortion; analysis/synthesis banks; finite word length effects; finite-precision model; multirate quadrature mirror filter; perfect-reconstruction property; phase distortion; roundoff noise; two-channel FIR QMF banks; Channel bank filters; Filter bank; Finite impulse response filter; Image reconstruction; Mirrors; Phase distortion; Quantization; Signal analysis; Signal synthesis; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Advances in Digital Filtering and Signal Processing, 1998 IEEE Symposium on
Conference_Location
Victoria, BC
Print_ISBN
0-7803-4957-1
Type
conf
DOI
10.1109/ADFSP.1998.685713
Filename
685713
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