| 自适应滤波器与DSP技术在电话电路上的应用 |
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| 引用本文： | 王向磊,张冶.自适应滤波器与DSP技术在电话电路上的应用[J].沈阳理工大学学报,2009,28(1):85-89. |
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| 作者姓名： | 王向磊 张冶 |
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| 作者单位： | 沈阳理工大学,信息科学与工程学院,辽宁,沈阳,110168 |
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| 摘 要： | 采用ADSP-2181数字信号处理器芯片和BL1062A电话接口芯片设计电话电路，采用C语言编写自适应滤波器算法程序，实现电话机语音处理系统的彬硬件设计，抑制背景未知干扰噪声，提高电话通话质量．实验证明，硬件设计简洁合理，软件算法十分有效，滤波效果显著．
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| 关 键 词： | 自适应滤波器 数字信号处理器 电话电路 |
Application of Adaptive Filter and DSP Technology in Telephone Circuit |
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| WANG Xiang-lei,ZHANG Ye.Application of Adaptive Filter and DSP Technology in Telephone Circuit[J].Transactions of Shenyang Ligong University,2009,28(1):85-89. |
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| Authors: | WANG Xiang-lei ZHANG Ye |
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| Affiliation: | Shenyang Ligong University;Shenyang 110168;China |
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| Abstract: | In this paper,a detailed analysis of adaptive filter algorithm and application of DSP technique in telephone circuit are provided.The telephone circuit is designed by using both ADSP-2181 digital signal processor chips and BL1062A telephone interface chips.The adaptive filter algorithm is programmed by using C language to reduce unknown disturbing background noise so as to eventually improve telephone network quality.It is demonstrated that the hardware design is concise and the reasonable and the algorithm... |
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| Keywords: | adaptive filter digital signal processor（DSP） telephone circuit |
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