基于典型应用场景的北斗导航效能评估方法  

Beidou Navigation Performance Assessment Based on Construction of Representative Applying Scenes

作　　者：刘婕 王玲[1] 黄文德[2] 张利云 LIU Jie;WANG Ling;HUANG Wende;ZHANG Liyun(College of Electrical and Information Engineering,Hunan University,2 South\|Lushan Road,Changsha 410082,China;College of Mechatronics Engineering and Automation,National University of Defense Technology,109 Deya Road,Changsha 410073,China)

机构地区：[1]湖南大学电气与信息工程学院,长沙市麓山南路2号410082 [2]国防科学技术大学机电工程与自动化学院,长沙市德雅路109号410073

出　　处：《大地测量与地球动力学》2018年第10期1027-1032,共6页Journal of Geodesy and Geodynamics

基　　金：湖南省军民融合北斗数据项目;北斗开放实验室微小课题~~

摘　　要：针对北斗典型应用场景下缺乏有效的导航效能评估手段问题,在场景建模的基础上提出用户终端的导航效能评估方法。首先分析北斗卫星导航可能存在的典型挑战性环境,提出典型应用场景构建要素,并根据构建要素构建了山地应用场景;然后提出以卫星可见性、导航精度为指标的导航效能评估方法;最后通过选取数字高程数据等建立具体场景,对其中的导航用户进行了效能分析。结果表明,该场景可以反映真实的导航情景,在此背景下提出的效能评估方法具有实用价值。Beidou lacks effective methods of navigation performance assessment in its representative applying scenes.This paper puts forward a way to evaluate the performance of Beidou user terminals based on the modeling of the scenes.This paper analyzes the possible challenge environment that Beidou might face and lists the elements to construct it.Then,the hilly scene is built following the steps.On this condition,the visibility of satellites and the precision of navigation are listed as major parameters to evaluate the navigation performance of user terminals.In the end,we construct a specific scene based on DEM and analyze the parameters mentioned above.The research demonstrates that the scene we have constructed can show the navigation performance in real life.The navigation performance assessment is practical in these circumstances.

关 键 词：北斗 导航 效能评估 场景构建 数字高程数据 

分 类 号：P228[天文地球—大地测量学与测量工程]