| 自适应滤波的研究新方向 |
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| 引用本文： | 徐蕾 孙金生. 自适应滤波的研究新方向[J]. 控制与决策, 1999, 14(1): 8-13 |
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| 作者姓名： | 徐蕾 孙金生 |
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| 作者单位： | 南京理工大学自动控制系 |
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| 基金项目： | 南京理工大学科研发展基金 |
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| 摘 要： | 概述了自适应滤波的研究进展，回顾了时域和变换域自适应滤液方法，并引出了基于离散小波变换（ＤＷＴ）的自适应滤波。变换城自适应滤波大大改善了时域自适应滤波的速率，而小波变换由于具有多分辨和时频局部化特性，在时变信号和快速变化的信号自适应滤波方面个有广阔的应用前景，是未来自适应滤波发展的方向。
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| 关 键 词： | 自适应滤波 时域LMS 小波变换 滤波理论 |
New Development in Adaptive Filtering |
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| Xu Lei,Sun Jinsheng,Wang Zhiquan. New Development in Adaptive Filtering[J]. Control and Decision, 1999, 14(1): 8-13 |
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| Authors: | Xu Lei Sun Jinsheng Wang Zhiquan |
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| Abstract: | This paper summarized the research progress of adaptive filtering, reviewed the time_domain and transform domain adaptive filtering, and introduced a new research direction of discrete wavelet transform (DWT) based adaptive filtering. Adaptive filtering in transform domain has greatly improved the convergence rate over the conventional time-domain one, and especially it is of the characteristics of multiresolution and time-frequency localization. So the DWT has a prosperous future in the adaptive filtering of time-varying and rapid changing signals. |
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| Keywords: | adaptive filtering time-domain LMS discrete Fourier transform discrete cosine transform discrete wavelet transform |
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