| 正交小波变换的残余相关分析 |
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| 引用本文： | 章勇,吴乐南.正交小波变换的残余相关分析[J].东南大学学报(自然科学版),1997(4). |
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| 作者姓名： | 章勇 吴乐南 |
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| 作者单位： | 浙江大学信息与电子工程学系(章勇)，东南大学无线电工程系(吴乐南) |
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| 基金项目： | 江苏省应用基础研究资助项目 |
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| 摘 要： | 构造了正交小波变换矩阵，分析了平稳模型和非平稳模型下正交小波变换的残余相关特性．实验结果表明，对于非平稳信号，正交小波变换的去相关性能好于离散余弦变换；而对平稳信号，正交小波变换性能较差，因此，在数据压缩应用中，应使用正交小波变换与其它经典变换相结合的编码方法
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| 关 键 词： | 正交小波变换 残余相关 数据压缩 |
Residual Correlation Analysis to Orthogonal Wavelet Transform |
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| Zhang Yong.Residual Correlation Analysis to Orthogonal Wavelet Transform[J].Journal of Southeast University(Natural Science Edition),1997(4). |
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| Authors: | Zhang Yong |
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| Abstract: | Orthogonal wavelet transform (OWT) matrix is constructed and the residual correlation property of OWT is analyzed under the stationary and nonstationary models. Experimental results show that the correlation reduction property of OWT is better than that of DCT when nonstationary signals are coded but less powerful for stationary signals. Therefore, the hybrid coding scheme combining OWT with other classic transforms should be used for data compression applications. |
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| Keywords: | orthogonal wavelet transform residual correlation data compression |
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