Open AccessResearch of Signal‐in‐Space Integrity Monitoring Based on Inter‐satellite Links
Author(s) -
Wang Yuechen,
Li Rui,
Zhao Ruibin
Publication year - 2015
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2015.04.036
Subject(s) - gnss applications , computer science , satellite , constellation , satellite system , satellite navigation , signal (programming language) , satellite constellation , stability (learning theory) , ellipsoid , orbit (dynamics) , mode (computer interface) , position (finance) , real time computing , algorithm , remote sensing , geodesy , global positioning system , aerospace engineering , telecommunications , geography , engineering , physics , programming language , operating system , finance , astronomy , machine learning , economics
Using the Inter‐satellite links (ISLs) to enhancethe GNSS's positioning accuracy and integrity isattracting much more attentions. In order to ensure theautonomous positioning accuracy and stability based onISLs, a satellite and ground joint positioning mode is presentedin this paper, which is constrained by quality gradeof position error. Spatial error ellipsoid is applied to calculateparameters and achieve Signal‐in‐space (SIS) integritymonitoring. To check the accuracy of the mode and performanceof monitoring, mixed constellation of Beidou systemis simulated to support the analysis and investigate the impactof the high‐low ISLs. The orbit determination resultsverify that the introduced integritymonitoring method cansatisfy the integrity risk of 10 −5 / h and achieve the SIS integritymonitoring.