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。
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.
出处
《公路交通科技》
CAS
CSCD
北大核心
2006年第3期125-127,134,共4页
Journal of Highway and Transportation Research and Development
基金
北京市教育委员会科技发展计划(2002kj003)
关键词
功率谱
功率谱估计
MATLAB
跟驰模型
Power Spectrum
Power Spectrum Estimating
MATLAB
Car following model
