核磁层析成像用正交镜像滤波器组中的四重数字滤波器

The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings. Pub Date : 2004-12-06 DOI:10.1109/APCCAS.2004.1412977

E. Gescheidtová, Z. Smékal, R. Kuhasek, K. Bartusek

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引用次数: 0

摘要

在数字信号处理的许多领域，小波变换是一种非常受欢迎的去噪工具。一个问题是，在一组滤波器中，大多使用选定的小波函数来预先确定低通和高通型正交小滤波器(QMF)的脉冲响应。本文采用标准的数字滤波器设计算法对QMF库进行设计。本文以Remez算法为例，设计了一组部分数字滤波器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Equaripple digital filters in quadrature mirror filter banks for nuclear magnetic tomography

The wavelet transform represents a very favourite tool for removing noise 6om signal on many areas of digital signal processing. A problem consists in that selected wavelet functions are mostly used that in advance defme the impulse response of quadrature minor filters (QMF) of the type of lowpass and highpass filters in a bank of filters. The paper deals with the design of QMF bank using standard design algorithms for digital filters. The Remez algorithm is used here as an example of the design of a bank of partial digital filters.

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The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings.

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