Evaluation on user range error and global positioning accuracy for GPS/BDS navigation system

Author

Zhang Tongyu ; Xu Aihua ; Su Rui

Author_Institution

State Key Lab. of Astronaut. Dynamics, Xi´an Satellite Control Center, Xi´an, China

fYear

2014

fDate

8-10 Aug. 2014

Firstpage

680

Lastpage

685

Abstract

The positioning accuracy of GNSS receiver mainly depends the two factors. One is the precision of the ranging, and the other is the geometric distribution of the navigation satellites. In this paper, the User Range Error (URE) is analyzed at first. Secondly, an evaluation method of the URE and the global GNSS positioning accuracy with the precise products, including the satellite ephemeris and clock bias, ionosphere grid, is proposed. Finally, the recent products provided by analysis center of the international GNSS Monitoring and Assessment System (iGMAS) are used for the assessment of the Global GNSS positioning accuracy. The simulation results indicate that the mixed constellation (GPS/BDS) can provide more robust navigation services and more precision than a single system.

Keywords

Global Positioning System; ionospheric techniques; receivers; BDS navigation system; GNSS monitoring and assessment system; GNSS receiver; GPS navigation system; clock bias; geometric distribution; global positioning accuracy; iGMAS; ionosphere grid; navigation satellites; satellite ephemeris; user range error evaluation; Accuracy; Equations; Global Positioning System; Mathematical model; Satellite broadcasting; Satellites; BDS; GNSS; GPS; Integrity; Positioning Accuracy; URE; iGMAS;

fLanguage

English

Publisher

ieee

Conference_Titel

Guidance, Navigation and Control Conference (CGNCC), 2014 IEEE Chinese

Conference_Location

Yantai

Print_ISBN

978-1-4799-4700-3

Type

conf

DOI

10.1109/CGNCC.2014.7007297

Filename

7007297