铁道标准设计2016，Vol.60Issue(7)：154-157,158,5.DOI:10.13238/j.issn.1004-2954.2016.07.035
基于TDOA的列车无线定位方法研究
Study on TDOA-based Wireless Train Positioning Method
摘要
Abstract
With respect to prevalent such drawbacks in the current train positioning as inability to provide continuous real-time positioning information, low positioning accuracy and excessive trackside equipment, a TDOA-based three-base station wireless train positioning is proposed in the light of the high positioning accuracy and the strong anti-multipath of TDOA. The nonlinear equation on the distance between trains and base stations is established to solve it with Newton iteration method. Simulation results show that this approach can satisfy the demand of train positioning, Newton iteration method has obvious optimization effect on big error positioning point and higher positioning precision compared with the classic CHAN algorithm. Besides, wireless train positioning approach is an effective positioning method to improve operational efficiency, reduce operation cost and provide references for train positioning.关键词
TDOA/基站/列车无线定位/牛顿迭代法/CHAN 算法/定位精度Key words
TDOA/Base station/Train wireless positioning/Newton iteration method/CHAN algorithm/Positioning precision分类
交通工程引用本文复制引用
马丽,张蕊萍,杜国璋..基于TDOA的列车无线定位方法研究[J].铁道标准设计,2016,60(7):154-157,158,5.基金项目
国家自然科学基金(61164010) （61164010）
