The Analysis of Station Network Layout Based on the Satellite Integrity

被引：0

作者：

Jiang, Kai ^{[1
]}

Duan, Xiaojun ^{[1
]}

Zheng, Yan ^{[1
]}

Yang, Wenqiang ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Sci, Dept Math & Syst Sci, Changsha 410073, Hunan, Peoples R China

来源：

CSNC 2011: 2ND CHINA SATELLITE NAVIGATION CONFERENCE, VOLS 1-3 | 2011年

关键词：

Integrity; Station Network; PDOP;

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Integrity is the capability of sending the alarm to the users timely when the navigation system is out of use and it is a significant parameter of satellite navigation system. In this paper the basic concepts of the Galileo system-level integrity are researched and the calculation of the integrity risks is derived theoretically. For the Beidou-2 Navigation System,the station network layout is analyzed and simulated from the perspective of the integrity indicators and based on Powell algorithm of the discontinuous function optimization changes of PDOP in the process of the iterative optimization of the station network from the point of integrity is compared. The results show that SISMA becomes smaller when the CV value becomes larger. At the same time the necessary theoretical description is made to the results.

引用

页码：745 / 750

页数：6