| 主从结构自适应噪声对消器MSANC的最优步长函数选择 |
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| 引用本文： | 康绍莉,裘正定,肖扬.主从结构自适应噪声对消器MSANC的最优步长函数选择[J].电路与系统学报,2000,5(3):17-21. |
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| 作者姓名： | 康绍莉 裘正定 肖扬 |
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| 作者单位： | 北方交通大学,信息研究所,北京,100044 |
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| 基金项目： | 国家自然科学基金!（ 69971002） |
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| 摘 要： | ＭＳＡＮＣ是一种新型优化的主从结构自适应声对消器，此系统具有两个自适应滤波器，主滤波器和从滤波器。从滤波器用于估计输入信噪比，主滤波器进行真正的自适应滤波。主滤波器的步长是输入信噪比的函数，对这个步长函数的选取，我们根据函数类型考虑了几种不情况，正指数型函数能取得最佳对消效果，是针对于此系统的最优选择。
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| 关 键 词： | 主从结构 自适应滤波 噪声对消 MSANC |
| 文章编号： | 1007-0249(2000)03-0017-05 |
| 修稿时间： | 2000年5月17日 |
Selection of the Optimal Step-size of the Adaptive Noise Canceller with Master-Slave Structure (MSANC) |
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| KANG Shao-li,QIU Zheng-ding,XIAO yang.Selection of the Optimal Step-size of the Adaptive Noise Canceller with Master-Slave Structure (MSANC)[J].Journal of Circuits and Systems,2000,5(3):17-21. |
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| Authors: | KANG Shao-li QIU Zheng-ding XIAO yang |
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| Abstract: | MSANC is a kind of novel adaptive noise canceller with master-slave structure. This system consists of two filters-a master filter and a slave filter. The slave filter is used to estimate the signal-to-noise ratio (SNR) of the original input. The master filter does the job of filtering. The step-size of the master filter is a function of the original SNR. Different functions for this step-size are selected. It is shown by simulation that the positive exponential function is the optimum for this system. |
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| Keywords: | Master-slave structure adaptive filtering step-size noise cancellation |
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