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基于Copula模型实现的车辆碰撞协同预警 被引量:3

Cooperative collision warning based on Copula method
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摘要 近十年来,智能交通系统(ITS)和车载网络开始融合紧密,从而彻底改变了事件侦查和交通信息传送的方式。车辆碰撞协同预警系统是其中一个重要方向。根据预设的一系列车辆碰撞协同预警系统(CCWS)的参数,如前后两辆车之间的距离、司机的反应时间、相对速度和加速性能等,采用Copula模型对这些参数进行分析并得到车辆发生碰撞的条件概率,从而为其建立相互的联系,从全局的角度多方面对碰撞作出预测。最后的仿真验证了此分析结果的正确性。 Recently,intelligent transportation system(ITS) and vehicular Ad hoc networks(VANET) change the mode of event detection and information transmission.One of the key components is cooperative collision warning system(CCWS).According to the assumed parameters,such as headway distance,driver reaction time,relative velocity and acceleration,this paper derived the probability of collision based on Copula algorithm.Thus it connected these parameters together and made collision warning more accuracy.In addition,extensive simulations demonstrate the effectiveness of the analysis.
出处 《计算机应用研究》 CSCD 北大核心 2012年第10期3761-3764,共4页 Application Research of Computers
基金 四川省教育厅自然科学基金重点资助项目(09ZA160) 西华大学重点资助项目(Z0920912) 印第安纳大学项目基金资助项目(2263160)
关键词 智能交通系统 车辆碰撞协同预警系统 碰撞概率 ITS CCWS probability of collision
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参考文献22

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