| 一种快速重构信号的方法è |
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| 引用本文： | 廖国勇,徐长发.一种快速重构信号的方法è[J].华中科技大学学报(自然科学版),2002,30(8):98-100. |
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| 作者姓名： | 廖国勇 徐长发 |
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| 作者单位： | 华中科技大学数学系 |
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| 摘 要： | 从多尺度的思想出发，提出一种由小波变换的模极大值及造成小波变换模极大值眯的信号突变点的正规性快速重构信号的方法，在各尺度下，依小波变换模极大值及造成小波变换模极大值点的信号突变点的正规性来选取基函数拟合信号在该尺度下的小波变换，再作小波反演得重构信号，实验结果表明，它是一种快速而又有较高信噪比的重构方法。
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| 关 键 词： | 小波 模极大值 信号重构 正规性 多尺度分析 |
| 文章编号： | 1671-4512(2002)08-0098-03 |
A fast algorithm for signal reconstruction |
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| Liao Guoyong Xu Changfa Postgraduate, Dept. of Maths.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..A fast algorithm for signal reconstruction[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(8):98-100. |
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| Authors: | Liao Guoyong Xu Changfa Postgraduate Dept of Maths Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Liao Guoyong Xu Changfa Postgraduate, Dept. of Maths.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | Based on the multiscale ideal, a fast algorithm was quiet to reconstruct the signal from its wavelet transform modulus maxima and its regularity of singularity create the wavelet transform modulus maxima. The bases function was made choice of according to its wavelet transform modulus maxima and its regularity of singularity that create the wavelet transform modulus maxima in order to reconstructing the wavelet transform of the signal on every scale, and all of these components were used to reconstruct the signal by inverse transform. Numerical results showed that the reconstruct algorithm is fast and can get high SNR (signal noise ratio). |
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| Keywords: | wavelet modulus maxima signal reconstruction regurlarity multiscale analysis |
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