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Effects of finite word length in two-channel QMF banks
H. Abdelhameed, , El-Guibaly F.
Published in Institute of Electrical and Electronics Engineers Inc.
Pages: 144 - 148
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. © 1998 IEEE.