带等纹阻带的线性相位2通道完全重构FIR滤波器组的设计与实现

Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems Pub Date : 1994-12-05 DOI:10.1109/APCCAS.1994.514558

T. Nagai, M. Ikehara

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引用次数: 1

摘要

本文提出了一种任意滤波器长度的线性相位2通道完全重构FIR滤波器组的设计与实现方法。该方法称为加权拉格朗日-牛顿法，通过将最小二乘加权函数引入到horong方法(拉格朗日-牛顿法)中，可以设计出具有良好阻带衰减的QMF (Quadrature Mirror Filters)。此外，我们展示了一个2通道完美QMF的构造，尽管系数量化，但仍能实现完美的重建。

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Design and implementation of linear-phase 2-channel perfect reconstruction FIR filter banks with equiripple stopband

This paper presents a design and implementation method for linear phase 2-channel perfect reconstruction FIR filter banks with arbitrary filter length. In this method, which we call the weighted Lagrange-Newton method, by introducing the least squares weighting function into Horng's method (Lagrange-Newton method), QMF (Quadrature Mirror Filters) with good stopband attenuation can be designed. Furthermore, we show the construction of a 2-channel perfect QMF that achieves perfect reconstruction in spite of coefficient quantization.

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Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems

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