| IP电话回声消除器中自适应滤波器的研究 |
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| 引用本文： | 范锦宏. IP电话回声消除器中自适应滤波器的研究[J]. 现代电子技术, 2005, 28(4): 15-16 |
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| 作者姓名： | 范锦宏 |
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| 作者单位： | 北方工业大学,电子信息工程系,北京,100041 |
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| 摘 要： | 介绍了一种用于IP电话的自适应回声消除器，采用LMS自适应滤波器实现。首先通过Matlab进行LMS算法的步长选择，并用生成的符合G．168要求的带限CSS测试信号对回声消除器的性能进行了测试。
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| 关 键 词： | LMS算法 回声消除 自适应滤波器 Matlab |
| 文章编号： | 1004-373X(2005)04-015-02 |
| 修稿时间： | 2004-11-25 |
Study of Adaptive Filter in Echo Cancellor in IP Phone |
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| FAN Jinhong. Study of Adaptive Filter in Echo Cancellor in IP Phone[J]. Modern Electronic Technique, 2005, 28(4): 15-16 |
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| Authors: | FAN Jinhong |
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| Abstract: | An adaptive echo cancellor will be introuduced in this article to meet the requirement of IP telephone system It is implemented by LMS adaptive filter The choice of step size is studied by using Matlab The bandlimited CSS signal accords with the requirement of G 168 The performance of echo cancellor is tested by the signal |
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| Keywords: | LMS algorithm echo cancellor adaptive filter Matlab |
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