Journal of Positioning, Navigation, and Timing (J Position Navig Timing; JPNT)
Citation: Park, J., Kim, B.-G., Kee, C., & Kim, D., 2023, Performance Analysis of Real-time Orbit Determination and Prediction for Navigation Message of Regional Navigation Satellite System, Journal of Positioning, Navigation, and Timing, 12, 167-176.
Journal of Positioning, Navigation, and Timing (J Position Navig Timing) 2023 June, Volume 12, Issue 2, pages 167-176. https://doi.org/10.11003/JPNT.2023.12.2.167
Received on 15 May 2023, Revised on 25 May 2023, Accepted on 01 June 2023, Published on 30 June 2023.
License: Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/bync/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Jaeuk Park1, Bu-Gyeom Kim1, Changdon Kee1†, Donguk Kim2
1Department of Aerospace Engineering and the Institute of Advanced Machines and Design, Seoul National University, Seoul 08836, Korea
2Agency for Defense Development, Daejeon 34186, Korea
†Corresponding Author: E-mail, kee@snu.ac.kr; Tel: +82-2-880-1912 Fax: +82-2-878-0559
This study presents the performance analysis of real-time orbit determination and prediction for navigation message generation of Regional Navigation Satellite System (RNSS). Since the accuracy of ephemeris and clock correction in navigation message affects the positioning accuracy of the user, it is essential to construct a ground segment that can generate this information precisely when designing a new navigation satellite system. Based on a real-time architecture by an extended Kalman filter, we simulated orbit determination and prediction of RNSS satellites in order to assess the accuracy of orbit and clock prediction and signal-in-space ranging errors (SISRE). As a result of the simulation, the orbit and clock accuracy was at 0.5 m and 2 m levels for 24 hour determination and six hour prediction after the determination, respectively. From the prediction result, we verified that the SISRE of RNSS for six hour prediction was at a 1 m level.
orbit determination, real-time, regional navigation satellite system, navigation message
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Conceptualization, J.P., D.K.; methodology, J.P. and B.K.; software, J.P.; validation, J.P., B.K., and C.K.; formal analysis, J.P.; investigation, J.P., and B.K.; resources, J.P.; data curation, J.P.; writing—original draft preparation, J.P. and C.K.; writing— review and editing, J.P.; visualization, J.P.; supervision, C.K.; project administration, D.K.; funding acquisition, D.K.
The authors declare no conflict of interest.