| 功率谱在交通流混沌现象研究中的应用 |
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| 引用本文： | 徐学明,王丽,荣建.功率谱在交通流混沌现象研究中的应用[J].公路交通科技,2006,23(3):125-127,134. |
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| 作者姓名： | 徐学明 王丽 荣建 |
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| 作者单位： | 北京工业大学,交通研究中心,北京,100022 |
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| 基金项目： | 北京市教育委员会科技发展计划（2002kj003） |
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| 摘 要： | 文章主要研究交通流中的混沌现象问题.在交通流混沌现象的研究中,引入混沌研究的重要方法--功率谱的研究方法,作为对混沌现象的判断和分析依据.文中介绍了功率谱的定义、功率谱分析方法的特点,并对其计算原理和在实现过程中使用的函数加以详细的叙述.在其实现的方式和途径上,采用MATLAB作为计算工具,并通过一个仿真的实例,对整个分析过程加以详尽的说明.根据仿真结果,得出交通流中存在混沌现象的结论.
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| 关 键 词： | 功率谱 功率谱估计 MATLAB 跟驰模型 |
| 文章编号： | 1002-0268（2006）03-0125-03 |
| 收稿时间： | 2004-11-22 |
| 修稿时间： | 2004-11-22 |
Application of Power Spectrum in Research of Chaos in Traffic Flow |
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| XU Xue-ming,WANG Li,RONG Jian.Application of Power Spectrum in Research of Chaos in Traffic Flow[J].Journal of Highway and Transportation Research and Development,2006,23(3):125-127,134. |
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| Authors: | XU Xue-ming WANG Li RONG Jian |
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| Institution: | Traffic Engineering Research Institute, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | Chaos in traffic,flow is studied in the paper.The authors introduce Power Spectrum which is the most important method in chaos research field into the study of chaos in traffic flow, as the method to estimate and analyze chaos. The paper also introduce definition and characteristic of Power Spectrum. Its principle and function used in realization process is described particularly. Matlab is used as tool to realize the method.A simulant example is given to describe the analysis process.As a conclusion of the paper, there is chaos in traffic flow. |
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| Keywords: | Power Spectrum Power Spectrum Estimating MATLAB Car following model |
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