摘要
随着北斗卫星导航系统(BDS)全球组网进程的推进,BDS/GPS组合导航成为提高导航性能的重要方法,同时地基增强系统(GBAS)作为实现精密导航的新一代导航方式是当前研究的热点。本文通过推导BDS/GPS双系统组合GBAS数学模型,分别对BDS、GPS独立作为GBAS导航源及BDS/GPS组合导航作为GBAS导航源时系统的精度因子(DOP)、垂直保护级(VPL)性能进行了对比分析,对比验证了应用各系统时GBAS性能的差异。结果表明,基于BDS与GPS的GBAS性能接近,且互有优势;BDS/GPS组合GBAS性能优于各单系统性能。
With the development of BDS,the global networking process is carried out,BDS/GPS integrated navigation has become an important method to improve the performance of navigation,and the ground augmentation system（ GBAS）,as a new generation of navigation mode for precision navigation,is the focus of current research. In this paper,through the derivation of BDS/GPS double system combined GBAS model,respectively to BDS,GPS as independent GBAS navigation source and BDS/GPS navigation accuracy as factor GBAS navigation source system（ DOP）,vertical protection level（ VPL） performance are analyzed,and the superiority of GBAS performance in integrated navigation system is verified.The result shows that GBAS based on GPS and BDS are close to each other and have their respective advantages,BDS/GPS combined GBAS outperforms the single system.
作者
于耕
张斌浩
赵龙
YU Geng;ZHANG Binhao;ZHAO Long(School of Civil Aviation, Shenyang Aerospace University, Shenyang 110136, China;School of Electronic： Information Engineering, Shenyang Aerospace University, Shenyang 110136, China)
出处
《测绘通报》
CSCD
北大核心
2018年第4期88-91,共4页
Bulletin of Surveying and Mapping
基金
国家自然科学基金(U1433115)
中航工业产学研协同创新专项(CXY2012SH16)
中国航天科技集团公司卫星应用科研创新基金项目(2014_CXJJ-TX_12)
