| 基于频率选择性滤波的归一化最小均方算法研究 |
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| 引用本文： | 姜吉光.基于频率选择性滤波的归一化最小均方算法研究[J].科学技术与工程,2012,12(12):2874-2878. |
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| 作者姓名： | 姜吉光 |
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| 作者单位： | 1. 吉林大学汽车仿真与控制国家重点实验室,长春130025;长春理工大学机电工程学院,长春130022
2. 吉林大学汽车仿真与控制国家重点实验室,长春,130025 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 通过对噪声主动控制技术中广泛应用的归一化滤波最小均方算法的分析，提出了基于频率选择性的归一化滤波最小均方算法并建立了该算法在噪声主动控制中的应用模型；在Matlab/Simulink环境中建立了归一化频率选择性最小均方算法的仿真模型，通过合理地选取自适应滤波器的结构、滤波器长度、收敛因子等控制参数，对单频噪声信号和窄带随机噪声信号进行了自适应抵消仿真分析。仿真结果表明，噪声信号抵消效果明显，与理论分析的结论一致，证明该算法准确并且有效。
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| 关 键 词： | 主动控制 LMS 归一化 频率选择性滤波 |
| 收稿时间： | 2/15/2012 2:41:37 PM |
| 修稿时间： | 2/22/2012 2:03:05 PM |
Research on Normalized Least Mean Square Method Based on frequency selectivity filter algorithm |
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| jiangjiguang.Research on Normalized Least Mean Square Method Based on frequency selectivity filter algorithm[J].Science Technology and Engineering,2012,12(12):2874-2878. |
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| Authors: | jiangjiguang |
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| Institution: | 1(State Key Laboratory of Automotive Simulation and Control,Jilin University1,Changchun 130022,P.R.China; College of Mechanical And Electrical Enigneering,Changchun University of Science and Technology2,Changchun 130022,P.R.China) |
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| Abstract: | Based on the normalized filtered least mean square method which is broadly applied on active noise control technology, the paper calculated the normalized frequency selective FXLMS algorithm and the model for the application of the algorithm on active noise control; and was modeled and analyzed the adaptive attenuation simulation with single tone noise signal and narrow band noise signal demonstrating on the platform of Matlab/Simulink,after the control parameters of filter performance parameters and step size and filter length of adaptive filter was decided . The simulation result was identical with theoretic solution and the presented algorithm was valid. |
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| Keywords: | active noise control LMS normalized frequency selective filter |
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