| 一种基于小波变换的自适应滤波新方案 |
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| 引用本文： | 王永德, 何培宇, 赵刚. 一种基于小波变换的自适应滤波新方案[J]. 电子与信息学报, 1999, 21(2): 212-218. |
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| 作者姓名： | 王永德 何培宇 赵刚 |
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| 作者单位： | 四川大学无线电系，四川大学无线电系，四川大学无线电系 成都 610064，成都 610064，成都 610064 |
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| 摘 要： | 本文基于L2(R)函数的尺度函数表示法提出一种适用于声回波对消应用的自适应系统辩识的新方案。该方案可以利用小波变换的抽取特性,降低自适应迭代的次数且保持小波准正交变换的优点。计算机模拟证实了上述论断的正确性。
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| 关 键 词： | 小波变换 自适应信号处理 声回波对消 |
| 收稿时间： | 1997-06-28 |
| 修稿时间： | 1998-07-11 |
A NEW WAVELET TRANSFORM BASED SCHEME FOR ADAPTIVE FILTERING |
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| Wang Yongde, He Peiyu, Zhao Gang. A NEW WAVELET TRANSFORM BASED SCHEME FOR ADAPTIVE FILTERING[J]. Journal of Electronics & Information Technology, 1999, 21(2): 212-218. |
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| Authors: | Wang Yongde He Peiyu Zhao Gang |
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| Affiliation: | Department of Radio Electronics Sichuan University Chengdu 610064 |
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| Abstract: | Based on the scale function representation for a function in L2(R), a new wavelet transform based adaptive system identification scheme used for acoustic echo cancellation is proposed. It can reduce the amount of computation by exploiting the decimation and keep the advantage of quasi-othogonal transform with the discrete wavelet transform(DWT). The issue has been supported by computer simulations. |
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| Keywords: | Wavelet transform Adaptive signal processing Acoustic echo cancellation |
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