有限字长对双通道QMF库的影响

1998 IEEE Symposium on Advances in Digital Filtering and Signal Processing. Symposium Proceedings (Cat. No.98EX185) Pub Date : 1998-06-05 DOI:10.1109/ADFSP.1998.685713

E. Abdel-Raheem, A. Tawfik, F. El-Guibaly

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引用次数: 3

摘要

研究了多速率双通道正交镜像滤波器组中的有限字长效应。研究了混叠抵消、幅度和/或相位畸变以及有限精度效应下的完全重建特性。将有限精度模型应用于几种类型的QMF银行，并报道了结果。

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Effects of finite word length in two-channel QMF banks

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.

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来源期刊

1998 IEEE Symposium on Advances in Digital Filtering and Signal Processing. Symposium Proceedings (Cat. No.98EX185)

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