| 基于级联原子库的谐波分析方法 |
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| 引用本文： | 唐承志,代云华,何国军.基于级联原子库的谐波分析方法[J].四川电力技术,2011,34(6):43-45,73. |
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| 作者姓名： | 唐承志 代云华 何国军 |
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| 作者单位： | 1. 西南交通大学电气工程学院,四川成都,610031
2. 西南交通大学信息科学与技术学院,四川成都,610031 |
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| 摘 要： | 提出一种基于级联原子库的谐波分析算法,该方法首先构造包含余弦原子和冲击原子的级联原子库,然后用该级联原子库对谐波信号进行稀疏分解,从而得到各个谐波信号分量的稀疏表示。该方法用余弦原子来表示谐波信号,用冲击原子来表示脉冲噪声,因此该方法能将噪声和谐波信号分离看,对脉冲噪声具有一定的鲁棒性。仿真实验结果显示,在信号受到脉冲噪声受严重干扰时,仍能较好地分析出谐波信号的各个参数。
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| 关 键 词： | 级联原子库 基追踪 谐波分析 |
Harmonic Analysis Based on Cascade Atom Dictionary |
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| Tang Chengzhi Dai Yunhua He Guojun.Harmonic Analysis Based on Cascade Atom Dictionary[J].Sichuan Electric Power Technology,2011,34(6):43-45,73. |
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| Authors: | Tang Chengzhi Dai Yunhua He Guojun |
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| Affiliation: | Tang Chengzhi Dai Yunhua He Guojun |
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| Abstract: | A harmonic analysis algorithm based on cascade atom dictionary is presented.The cascade atom dictionary including cosine atom and pulse atom is built by the proposed method,and then the harmonic signal is decomposed using the cascade atom dictionary,thereby the sparse representation of each harmonic signal component is obtained.In this method,the cosine atom is used to represent the harmonic signal and the pulse atom is used to represent the impulse noise.Consequently,the harmonic signal and the noise can b... |
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| Keywords: | cascade atom dictionary basis pursuit harmonic analysis |
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