计算机工程与应用2011，Vol.47Issue(24)：229-232,4.DOI:10.3778/j.issn.1002-8331.2011.24.064
混合浮动车交通状态估计的样本数量研究
Study on sample size of mixed probe vehicles for traffic parameter estimation
摘要
Abstract
One important issue of probe vehicle traffic information collection is how to determine the sample size,under the premise of ensuring the traffic information received by GPS equipped probe vehicles accurate and reliable.In consideration of the validity of data, probe vehicle speed, sampling time interval, especially the mixed ratio coefficient, it analyzes the effect of mixed ratio coefficient to the sample size.The model of probe vehicle sample size on road network is established by the combination of different types of sample size model.The result shows that:compared with the previous model,this one is more reasonable and greatly enhances the ability of the practical application.关键词
浮动车/样本数量/样本种类/混合比例系数Key words
probe vehicle/sample size/sample type/mixed ratio coefficient分类
交通运输引用本文复制引用
廖孝勇,孙棣华,周舒杰,田川,古曦..混合浮动车交通状态估计的样本数量研究[J].计算机工程与应用,2011,47(24):229-232,4.基金项目
国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2002BA404A07) （863）
重庆市科技攻关项目(No.CTSC2005AC6037). （No.CTSC2005AC6037）
