A Fast Algorithm and Its Implementation with the Simple Structure for the Discre W Transform

Zheng Baoyu

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A Fast Algorithm and Its Implementation with the Simple Structure for the Discre W Transform

更新时间：2025-12-08

- A Fast Algorithm and Its Implementation with the Simple Structure for the Discre W Transform
- Acta Electronica Sinica Issue 4, (1995)
- 作者机构：
  
  南京邮电学院电信工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.72
- Published：1995
- 稿件说明：
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[1]郑宝玉.一种结构简单的快速W变换算法及其实现[J].电子学报,1995(04):74-79.

Zheng Baoyu. A Fast Algorithm and Its Implementation with the Simple Structure for the Discre W Transform[J]. Acta Electronica Sinica, 1995, (4).
[1]郑宝玉.一种结构简单的快速W变换算法及其实现[J].电子学报,1995(04):74-79. DOI：

Zheng Baoyu. A Fast Algorithm and Its Implementation with the Simple Structure for the Discre W Transform[J]. Acta Electronica Sinica, 1995, (4). DOI：

摘要

本文给出一种结构简单的快速算法及其＂即位＂实现程序，用以计算Ｎ＝２Ｍ点的所有四种类型的离散Ｗ变换（ＤＷＴ）．该算法所需要的计算量和目前效率最高的ＦＷＴ算法［４］一样，但结构更简单、且使用余弦乘子；因此它既避免了ＦＷＴ算法的缺点，又具有更高的计算效率。

Abstract

A fast algorithm with the simple structure is presented for the computation of all four types of the radix-2 discrete W transform（DWT）. Experimetal results have shown that the subroutines of proposed fast W transform are more efficient than any other published ones. In addition

it has smaller error because of using cosine multipliers.

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