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| 基于小波变换提升算法的二维信号降噪新方法研究 | |
| 引用本文： | 邓添予,郭科,付宇.基于小波变换提升算法的二维信号降噪新方法研究[J].四川理工学院学报(自然科学版),2009,22(3):77-79,82. |
| 作者姓名： | 邓添予 郭科 付宇 |
| 作者单位： | 1. 成都理工大学信息管理学院,成都,610059;四川理工学院理学院,四川,自贡,643000 2. 成都理工大学信息管理学院,成都,610059 3. 四川理工学院理学院,四川,自贡,643000 |
| 摘 要： | 在经典小波去噪中,小波分解的结果与所采用的小波基函数有关,一旦选用不适当的小波基函数会冲淡振动信号的局部特征信息,从而造成原始信号的细节信息丢失。为了克服上述缺陷,Wim Sweldens博士提出了一种使用提升模式构造小波的方法,即第二代小波。文章讨论了一种基于前人成果发展出的二维信号降噪算法,证明了在二维降噪实践中第二代小波算法的优越性。 |
| 关 键 词： | 小波变换 提升算法 降噪 Matlab二维信号 |
Study on the New Method of Signal Denoising with Second Generation Wavelet Transform Under Mathla Environment |
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| DENG Tian-yu,GUO Ke,FU Yu.Study on the New Method of Signal Denoising with Second Generation Wavelet Transform Under Mathla Environment[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2009,22(3):77-79,82. | |
| Authors: | DENG Tian-yu GUO Ke FU Yu |
| Institution: | 1.College of Information Management;Chengdu University of Technology;Chengdu 610059;China;2.College of Science;Sichuan University of Science & Engineering;Zigong 643000;China |
| Abstract: | In the demising of traditional wavelet transforms,the result of wavelet decomposing is related with basis function.The adopted wavelet which is ill-suited can delude the local characteristic of vibrating signal,and lost some useful detail information of original for signal.In order to overcome mentioned limitation,Dr.Wim Sweden proposed the method of constructing wavelet function.Based on the lifting scheme,an adaptive wavelet transform denoising metho which uses,the correlation of even and odd space to con... |
| Keywords: | second generation wavelet transform denoisin two-dimensional signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |