| 用FOT概率模型提取循环平稳信号的周期成分 |
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| 引用本文： | 翁虹,王宏远,董天临.用FOT概率模型提取循环平稳信号的周期成分[J].华中科技大学学报(自然科学版),2007,35(7):39-41. |
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| 作者姓名： | 翁虹 王宏远 董天临 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074;华中科技大学,电子与信息工程系,湖北,武汉,430074;华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 摘 要： | 运用概率和度量空间等距同构的理论,对FOT概率模型进行了推导,然后将二阶FOT概率模型运用于循环平稳信号的周期成分提取中,并进行了改进.利用FOT概率的循环谱,实现周期成分提取,并将这种改进的周期成分提取操作运用于通信信号的载波频率和符号速率的提取中,实验结果表明,该方法能准确获取循环平稳信号的周期频率.
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| 关 键 词： | 时间概率 Wold同构 循环平稳 |
| 文章编号： | 1671-4512（2007）07-0039-03 |
| 修稿时间： | 2006-03-01 |
Extraction of the periodic components from cyclostationary signals by using FOT probability model |
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| Weng Hong,Wang Hongyuan,Dong Tianlin.Extraction of the periodic components from cyclostationary signals by using FOT probability model[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(7):39-41. |
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| Authors: | Weng Hong Wang Hongyuan Dong Tianlin |
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| Institution: | Department of Electronics and Infromation Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | FOT probability model was derived in terms of the knowledge of the probability and the knowledge of the isometric isomorphism of metric space. The periodic-component extraction method was improved by cyclic spectrum estimating of second order FOT probability instead of the Fourier transformation of the FOT probability. And this improved method is then adopted to derive the carrier frequency and the symbol rate of communication signal. In the results of simulations, the cycle frequency of cyclostationary signal is exactly presented in the cyclic spectrum of the FOT probability of the signal. |
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| Keywords: | fraction of time(FOT) probability Wold isomorphism cyclostationarity |
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