| 自适应小波变换更新滤波器的优化研究 |
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| 引用本文： | 高广春,熊凯,赵胜颖,尚丽娜,张翠.自适应小波变换更新滤波器的优化研究[J].电路与系统学报,2011,16(3):81-86,122. |
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| 作者姓名： | 高广春 熊凯 赵胜颖 尚丽娜 张翠 |
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| 作者单位： | 浙江大学城市学院信息与电子工程系; |
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| 基金项目： | 杭州市重点实验室科技计划项目资助课题(20080431T08); 浙江省自然科学基金项目资助课题(Y1110632) |
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| 摘 要： | 基于提升格式的小波变换被称为第二代小波变换,该种结构提供了一种灵活构造非线性小波分解和重构的方法.G.Piella根据提升格式小波变换的结构特点,提出了一种不需要额外附加信息就可完成精确重构的自适应更新滤波器,但算法只说明了滤波器系数需要满足精确重构的条件,没有具体说明如何确定滤波器的系数.在先选定预测滤波器的基础上,...
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| 关 键 词： | 提升格式 自适应小波变换 最小均方差 |
Study on optimal update filter based on lifting schemeadaptive wavelet transform |
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| GAO Guang-chun,XIONG Kai,ZHAO Sheng-ying,SHANG Li-na,ZHANG Cui.Study on optimal update filter based on lifting schemeadaptive wavelet transform[J].Journal of Circuits and Systems,2011,16(3):81-86,122. |
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| Authors: | GAO Guang-chun XIONG Kai ZHAO Sheng-ying SHANG Li-na ZHANG Cui |
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| Affiliation: | GAO Guang-chun,XIONG Kai,ZHAO Sheng-ying,SHANG Li-na,ZHANG Cui (Department of Information Science and Electronic Engineering,Zhejiang University City College,Hangzhou,310015,China) |
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| Abstract: | Wavelet transforms via lifting scheme provides a general and an adaptive flexible tool for the construction of wavelet decompositions and perfect reconstruction filter banks.According to the construction of the lifting wavelet transforms,G.Piella presents an adaptive update lifting scheme,where the perfect reconstruction is possible without sending any side information.The perfect reconstruction condition for the filter coefficients is presented in G.Piella's algorithm,but the method for determining the fil... |
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| Keywords: | lifting scheme adaptive wavelet transform minimum mean square error |
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