| 自适应增益APA-AG算法的研究 |
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| 引用本文： | 智永锋,范蟠果,张骏,邓正宏,张怡. 自适应增益APA-AG算法的研究[J]. 西北工业大学学报, 2011, 29(3): 449-453 |
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| 作者姓名： | 智永锋 范蟠果 张骏 邓正宏 张怡 |
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| 作者单位： | 西北工业大学自动化学院,陕西西安,710072 |
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| 基金项目： | 西北工业大学基础研究基金 |
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| 摘 要： | 为了提高自适应滤波器的收敛性和跟踪性,提出了一种自适应增益APA-AG算法。通过分析估计输出误差信号,获得了参数迭代步长的一个特定值估计,以实现集平均代价函数最小化。仿真结果表明,相比较于传统的APA算法,文中研究的APA-AG算法具有更快的收敛速率和更好的跟踪特性。
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| 关 键 词： | 自适应滤波 算法 APA算法 自适应增益 |
A Better Affine Projection Algorithm (APA) Using Adaptive Gain (AG) |
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| Zhi Yongfeng,Fan Panguo,Zhang Jun,Deng Zhenghong,Zhang Yi. A Better Affine Projection Algorithm (APA) Using Adaptive Gain (AG)[J]. Journal of Northwestern Polytechnical University, 2011, 29(3): 449-453 |
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| Authors: | Zhi Yongfeng Fan Panguo Zhang Jun Deng Zhenghong Zhang Yi |
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| Affiliation: | (Department of Automatic Control,Northwestern Polytechnical University,Xi′an 710072,China) |
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| Abstract: | Aim.To improve the convergence rate and tracking performance of an adaptive filter,especially for the highly colored input signals,Refs.3 and 4 adopt the APA algorithm.However,its gain does not change,and thus its convergence is not as rapid as is possible,in our opinion,with adaptive gain.We explain mathematically in sections 1,2 and 3 of the full paper our APA-AG algorithm and discuss how to minimize the ensemble-average cost function by analyzing the estimated output-error.The core of section 2,which is ... |
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| Keywords: | adaptive filtering algorithms affine projection algorithm(APA) adaptive gain(AG) |
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