| 自适应旋转投影分解法 |
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| 引用本文： | 殷勤业,钱世锷.自适应旋转投影分解法[J].电子学报,1997,25(4):52-58. |
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| 作者姓名： | 殷勤业 钱世锷 |
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| 作者单位： | 西安交通大学信息工程研究所 |
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| 基金项目： | 国家教委跨世纪优秀人才基金,博士点资金 |
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| 摘 要： | 本文提出种新的时－频分解方法－自适应旋转投影分解法。在表征信号空间的线性调频高斯信号集上，我们针对原始信号自适应地搜索出一组与信号匹配最好的基函数序，以此 用尽可能少的基函数来重构信号子空间。
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| 关 键 词： | 时频分析 投影分析 APO分解 信号处理 |
Adaptive Oriented Orthogonal Projective Decomposition |
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| Yin Qinye,Ni Zhifang.Adaptive Oriented Orthogonal Projective Decomposition[J].Acta Electronica Sinica,1997,25(4):52-58. |
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| Authors: | Yin Qinye Ni Zhifang |
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| Affiliation: | (DSP GrouP of National Instruments,USA)Yin Qinye,Ni Zhifang(Institute oflnformation Engineering,Xian Jiaotong University,Xian 710049) |
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| Abstract: | In this paper,we present a new algorithm,called adaptive oriented orthogonal projective decomposition (AOP),to decompose a signal into a sum of Gauss functions. The elementary functions used in AOP are the dilations,modulations and translations of a normalized Gauss function. They can be adjusted to best match the original signal. We derive a Time-Frequency energy distribution, by adding the Wigner-Ville distribution of the selected elementary functions. Since the Gauss functions are well localized in the time-frequency domain,the AOP distribution has high resolution,no crossterm and no negative energy. It's a powerful tool of time-frequency analysis. |
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| Keywords: | Time-frequency analysis Projective decomposition AOP decomposition |
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