| 基于Matlab的长序列快速小波变换实现 |
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| 引用本文： | 吕新华,武斌.基于Matlab的长序列快速小波变换实现[J].微计算机信息,2005(25). |
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| 作者姓名： | 吕新华 武斌 |
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| 作者单位： | 湖北武汉海军工程大学电子工程学院，湖北武汉海军工程大学电子工程学院 |
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| 基金项目： | 国防预研基金项目,编号不公开 |
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| 摘 要： | 借助Matlab作为辅助设计工具,在Mallat算法的基础上,利用重叠保留法对长序列进行分段处理,并用圆周卷积代替小波变换中大量的线性卷积运算,有利于信号的实时处理。使用Matlab语言按算法流程编写程序,仿真结果验证了算法的正确性和有效性。
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| 关 键 词： | 快速小波变换 圆周卷积 快速傅里叶变换 Matlab |
Fast Implementation of Long Sequence Wavelet Transform Based on Matlab |
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| LV,Xinhua WU,Bin.Fast Implementation of Long Sequence Wavelet Transform Based on Matlab[J].Control & Automation,2005(25). |
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| Authors: | LV Xinhua WU Bin |
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| Affiliation: | (College of Electronic Engineering,Naval University of Engineering,Wuhan 430033,China)LV,Xinhua WU,Bin |
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| Abstract: | With the help of Matlab, FFT is proposed to be used in place of linear convolution in the implementation of wavelet transform on the basis of Mallat Algorithm. Long sequence is easy to be processed in real time by the method of overlap- sav- ing, in which cutting long sequence into segments. Computer simulation results prove that the proposed algorithm is accurate and efficient by writing Matlab program according to this algo- rithm flow. |
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| Keywords: | fast wavelet transform cyclic convolution FFT Matlab |
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