| 基于变论域变步长LMS算法的自适应逆控制系统稳定性 |
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| 引用本文： | 白晶,尹怡欣,郝智红.基于变论域变步长LMS算法的自适应逆控制系统稳定性[J].电工技术学报,2009,24(7). |
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| 作者姓名： | 白晶 尹怡欣 郝智红 |
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| 作者单位： | 1. 北京科技大学信息工程学院,北京,100083;北华大学电气信息工程学院,吉林,132021
2. 北京科技大学信息工程学院,北京,100083 |
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| 摘 要： | 提出一种基于变论域变步长LMS自适应滤波算法,该算法的步长随偏差论域的变化而变化。理论研究和仿真结果表明,该算法在控制系统对象及其逆的建模中能同时兼顾初始收敛速度、时变系统跟踪能力及收敛精度三个性能指标,可应用于自适应逆控制系统对象及其逆的建模中,使控制系统具有良好的动静态特性。并给出了基于变论域变步长LMS算法的自适应逆控制系统全局稳定性证明。
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| 关 键 词： | 变论域变步长 LMS算法 自适应逆控制 稳定性 初始收敛速度 时变系统跟踪能力 收敛精度 |
Investigation on the Stability of Adaptive Inverse Control System Based of Variable Region Variable Step Size LMS Algorithm |
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| Bai Jing,Yin Yixin,Hao Zhihong.Investigation on the Stability of Adaptive Inverse Control System Based of Variable Region Variable Step Size LMS Algorithm[J].Transactions of China Electrotechnical Society,2009,24(7). |
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| Authors: | Bai Jing Yin Yixin Hao Zhihong |
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| Affiliation: | 1. Beijing University of Science and Technology Beijing 100083 China 2. Beihua University Jilin 132021 China |
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| Abstract: | An LMS (Least Mean Square) adaptive filtering algorithm based on variable region variable step-size is presented in this paper. The step size in the algorithm varied with the variation of the region of windage. The theory research and simulation results show that the algorithm give attention to the three performance indexes in the control and inverse system modeling, which are initial convergent speed, tracking ability of time-varying system and convergence precision. The algorithm is validated in adaptive ... |
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| Keywords: | Variable region variable step size LMS algorithm adaptive inverse control stability initial convergent speed tracking ability of time-varying system convergence precision |
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