基于GPS 的列控轨道地图数据生成方法研究.pdf

文档介绍：第 40 卷
第 1 期测
绘
学
报 Vol. 40, No. 1
2011
年 2 月 Acta Geoda etica et Ca rtographica Sinica Feb. , 2011
文章编号: 1001
1595( 2011) 01
0111
07
基于 GPS 的列控轨道地图数据生成方法研究
刘
江1, 2 , 蔡伯根1 , 唐
涛2 , 王
剑1, 2
1. 北京交通大学电子信息工程学院, 北京 100044; 2. 北京交通大学轨道交通控制与安全国家重点实验室, 北京 100044
Research on GPS Based Tra ck Map Data Generation Method for Train Control
LIU Jia ng1, 2 , CAI Baigen2 , TANG Tao1 , WANG Jian2
1. School of Electronics a nd Information Engineering, Beij ing Jia otong University, Beij ing 100044, China ; 2. State Key La bora tory
of Rail Traffic Control a nd Safety, Beiji ng Jia otong University, Beiji ng 100044, China
Abstract : To meet different level requirements of train positioning and control, the track map data for train control
consists of private da ta, tra ck da ta and terrain environment data, a nd the track data a re divided into fea ture layer
and interpolation la yer under different sca les, which could contribute plete structure of the tra ck ma p. To
huge GPS measurements, the multi
points weighted distance discrimina tion and Kalman estimation are applied to
reject incorrect da ta; with improvement of Douglas
Peucker method, in which the origina l da ta are divided as the
track curve fea ture a nd the limited error is adjusted dynamically, certa in feature points a re selected to describe the
rea l track under low scale; based on the fea ture point set, int