| 时变谐波参数检测 |
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| 引用本文： | 石敏,徐袭,蒋伟涛,张纪铃.时变谐波参数检测[J].微计算机信息,2011(8). |
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| 作者姓名： | 石敏 徐袭 蒋伟涛 张纪铃 |
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| 作者单位： | 中国人民解放军91388部队; |
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| 摘 要： | 本文以自适应线性组合器为基础,采用递归最小二乘法进行时变谐波参数的跟踪检测。当信号的基波频率发生变化时,采用分段检测的思想,对每小段信号先采用插值快速傅立叶变换法检测该段基波频率,作为自适应线性组合器的输入,然后采用递归最小二乘法进行幅度和相位的跟踪检测。该方法利用递归最小二乘法跟踪速度快的特点,实现了时变谐波的快速跟踪检测。实验结果验证了所提方法的有效性和准确性。
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| 关 键 词： | 时变谐波 自适应线性组合器 递归最小二乘 插值FFT |
Time-varying harmonic Parameters detection based on interpolating-FFT and adaptive linear combiner |
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| SHI Min XU Xi JING Wei-tao ZHANG Ji-ling.Time-varying harmonic Parameters detection based on interpolating-FFT and adaptive linear combiner[J].Control & Automation,2011(8). |
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| Authors: | SHI Min XU Xi JING Wei-tao ZHANG Ji-ling |
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| Affiliation: | SHI Min XU Xi JING Wei-tao ZHANG Ji-ling(No.91388 Troops of PLA,Zhanjiang 524022,Guangdong Province,China) |
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| Abstract: | A method based on adaptive linear combiner(Adaline) and recursive least square(RLS) was proposed to track parameters of time-varying harmonics in the paper.When the base frequency of signal is varied,the subsection means is used.Firstly,the base frequency of segment signal is estimated by interpolation FFT and used as the input of Adaline.Then,RLS algorithm is implemented to track amplitude and angle of harmonics.The fast tracking speed of RLS algorithm makes the fast tracking of time-varying parameters bec... |
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| Keywords: | Time-varying Harmonics Adaptive Linear Combiner(Adaline) Recursive Least Square(RLS) Interpolating-FFT |
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