DocumentCode :
667815
Title :
Study on the method of measuring and estimating the time synchronization accuracy under constellations autonomous operation based on the ground testing system
Author :
Ren Xiaoqian ; Hua Yu ; Qin Weijin ; Wu Haitao
Author_Institution :
Nat. Time Service Center, Xi´an, China
fYear :
2013
fDate :
21-25 July 2013
Firstpage :
331
Lastpage :
334
Abstract :
Constellations autonomous operation capability of the satellite navigation system is one of the primary ways for improving system´s survivability. It is unrealistic obviously that the satellites do not update the data to test and verify the constellations autonomous operation capability under the condition of satellite navigation system can support by the ground-monitoring system. The study of measuring and estimating constellations autonomous operation time synchronization´s accuracy in condition of the satellite navigation system operate normally is so little. This paper discusses the importance of testing and verification for diffident working mode, it provides one kinds of method of measuring and estimating the time synchronization accuracy under constellations autonomous operation based on the ground testing system. In the paper, it gives the basic principle and the computational model, verifying and analysing the method by simulation data. This method provides technical support for building global satellite navigation system´s inter-satellite link.
Keywords :
satellite navigation; synchronisation; time measurement; computational model; constellations autonomous operation; global satellite navigation system; ground testing system; ground-monitoring system; inter-satellite link; satellite navigation system; time synchronization accuracy; Accuracy; Delays; Satellite broadcasting; Satellite navigation systems; Satellites; Synchronization; Testing; Constellations autonomous operation; Ground Testing System; Measuring and Estimating; Time synchronization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
Conference_Location :
Prague
Type :
conf
DOI :
10.1109/EFTF-IFC.2013.6702176
Filename :
6702176
Link To Document :
بازگشت