| 基于DSP的主动噪声控制系统设计与实现 |
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| 引用本文： | 张有鹏,刘郁林,杨磊.基于DSP的主动噪声控制系统设计与实现[J].电声技术,2007,31(11):65-67,73. |
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| 作者姓名： | 张有鹏 刘郁林 杨磊 |
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| 作者单位： | 重庆通信学院,重庆,400035 |
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| 基金项目： | 国家自然科学基金(60672157,60672158) |
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| 摘 要： | 介绍了主动噪声控制技术的理论基础和算法,以自适应主动噪声前馈控制系统为研究核心,选用TMS320VC5509 DSP作为控制器,给出了系统的硬件解决方案,并用C语言编程在硬件系统上实现了基于FX-LMS算法的主动噪声实时控制。800Hz单频噪声的实验结果表明系统可降低噪声9dB。
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| 关 键 词： | 主动噪声控制 自适应滤波 FX-LMS算法 |
| 文章编号： | 1002-8684（2007）11-0065-03 |
| 修稿时间： | 2007-07-05 |
Design and Realization of an Active Noise Control System Based on DSP |
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| ZHANG You-peng,LIU Yu-lin,YANG Lei.Design and Realization of an Active Noise Control System Based on DSP[J].Audio Engineering,2007,31(11):65-67,73. |
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| Authors: | ZHANG You-peng LIU Yu-lin YANG Lei |
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| Affiliation: | Chongqing Communication College, Chongqing 400035, China |
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| Abstract: | The theory and algorithm of active noise control are introduced,and the feed-forward AANC (Adaptive Active Noise Control) system is presented. TMS320VC5509 DSP is used as the controller. Based on FX-LMS (Filtered-X Least Mean Square) algorithm, the active noise real-time control system is realized by C language. The 800 Hz noise experiment results prove that 9 dB cancellation is achieved. |
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| Keywords: | active noise control adaptive filtering FX-LMS algorithm |
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