Abstract
Autonomous navigation technology of navigation satellite is the key technology of new-generation Beidou navigation system. There are a lot of researches on the autonomous navigation algorithm at home and abroad. But because of the limit of condition, the previous research work is based on the ground simulation data, which includes reference orbit, reference clock error, and inter-satellite pseudorange. The reference orbit data and reference clock error data generally are based on the GPS satellites, which cannot truly represent the characteristics of the orbit and the clock of Beidou satellite. In addition, all kinds of errors those are added to the two-way pseudorange are calculated based on the known error models, which cannot simulate the real space environment. First, this paper gives the accuracy of autonomous orbit determination which is calculated by onboard algorithm. Then the error of the autonomous navigation algorithm is analyzed accurately based on the onboard observation data and precise ephemeris. Finally, using the high accuracy error of system, run the autonomous navigation algorithm at ground and get more precise accuracy of autonomous orbit determination.
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© 2016 Springer Science+Business Media Singapore
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Chang, J., Shang, L., Li, G. (2016). The Accuracy Analysis of Autonomous Orbit Determination Based on Onboard Observation Data of Inter-Satellite Link. In: Sun, J., Liu, J., Fan, S., Wang, F. (eds) China Satellite Navigation Conference (CSNC) 2016 Proceedings: Volume III. Lecture Notes in Electrical Engineering, vol 390. Springer, Singapore. https://doi.org/10.1007/978-981-10-0940-2_19
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DOI: https://doi.org/10.1007/978-981-10-0940-2_19
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