| 基于线性正则变换的时频信号分离方法 |
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| 引用本文： | 向强,秦开宇,张传武.基于线性正则变换的时频信号分离方法[J].电子科技大学学报(社会科学版),2010(4). |
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| 作者姓名： | 向强 秦开宇 张传武 |
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| 作者单位： | 电子科技大学自动化工程学院;西南民族大学电信学院; |
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| 基金项目： | 国家自然科学基金(60603009); 西南民族大学校级基金的资助 |
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| 摘 要： | 时频信号分析是当今信号处理领域研究的一个热点问题,各种时频分布函数得到了广泛的研究和应用。线性正则变换是一种重要的时频分析工具。文中研究了线性正则变换与传统时频分布函数的关系;并基于这些关系,提出了一种新的时频信号分离方法,能够把在时频面上互不重叠、但在时域和频域均存在较强耦合的多分量合成信号有效地分离。仿真实例表明了该方法的正确性和实用性。
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| 关 键 词： | 带通滤波器 傅里叶变换 线性正则变换 信号分离 时频分析 |
Novel Method for Time-Frequency Signal Separation Based on the Linear Canonical Transform |
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| XIANG Qiang,QIN Kai-yu, ZHANG Chuan-wu.Novel Method for Time-Frequency Signal Separation Based on the Linear Canonical Transform[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(4). |
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| Authors: | XIANG Qiang QIN Kai-yu ZHANG Chuan-wu |
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| Institution: | XIANG Qiang1,2,QIN Kai-yu1,, ZHANG Chuan-wu2 (1. School of Automation Engineering,University of Electronic Science , Technology of China Chengdu 610054,2. College of Electrical & Information,Southwest University for Nationalities Chengdu 610041) |
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| Abstract: | Time-frequency signal analysis is a hot research topic in signal processing domain at present. A number of time-frequency distributions have been developed and used to analyze time-frequency signal. The linear canonical transform with multi-parameter is a powerful time-frequency analysis tool. It is the generalization of the Fourier transform and the fractional Fourier transform. In this paper,the relations between the linear canonical transform and time-frequency distributions are obtained. Based on these ... |
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| Keywords: | bandpass filter Fourier transform linear canonical transform signal separation time-frequency analysis |
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