桂林理工大学学报2015，Vol.35Issue(3)：524-527,4.DOI:10.3969/j.issn.1674-9057.2015.03.015
现阶段北斗卫星导航系统可用性分析
Analysis of availability of BeiDou Navigation Satellite System at present stage
摘要
Abstract
The availability of navigation system is a major indicator of service capability for a certain area .This paper involves a detailed analysis on masking angle influence on PDOP system availability, satellite visibility and PDOP system availability under 5°masking angle in the test field within 24 hours (60°E-150°E,0°N-60°N, 1°×1°net).The distribution regularities of availability in time and space for BDS at the present stage are obtained.The preliminary analysis shows that PDOP availability under 5°masking angle is 98% better and the BDS can provide ideal visibility of PDOP value and availability for the users of our and neighbour countries .关键词
北斗卫星导航系统/PDOP/可用性/截止角/可见性Key words
BDS/PDOP/availability/masking angle/visibility分类
天文与地球科学引用本文复制引用
王式太,彭军还..现阶段北斗卫星导航系统可用性分析[J].桂林理工大学学报,2015,35(3):524-527,4.基金项目
国家自然科学基金项目 (41064001) （41064001）
广西自然科学基金项目 (2012GXNSFAA053183) （2012GXNSFAA053183）
广西空间信息与测绘重点实验室开放基金项目 (桂科能1207115-22) （桂科能1207115-22）
