摘要
简要阐述无线定位的基本原理和在铁路交通中的具体应用和发展趋势 ,对定位误差进行了分析 ,并结合铁路交通定位的特殊性 ,提出适合铁路交通的单、双基站定位方案 ,在定位精度和抗NLOS等方面对各方案进行比较分析。提出建立自适应列车运动轨迹预测模型 ,并对如何提高定位精度进行了分析。
the authors introduce the basic principle, application and developing trend of mobile phone positioning, and analyze the errors occurring in positioning. In combination with railway practices, some positioning methods are proposed and compared among one another. A model is built on the basis of the moving law of the train to predict the train location and analysis is made as regards how to reduce positioning errors.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2004年第1期73-76,共4页
Journal of the China Railway Society
关键词
无线定位
单双基站定位
预测模型
mobile phone positioning
single/double BSs positioning
predicting model
