Analysis of detailed errors affecting the calibration of space station common-view geometric distance

Yinhua Liu; Ya Liu; Xiaohui Li; Yanming Guo

doi:10.1117/12.3032460

16 August 2024 Analysis of detailed errors affecting the calibration of space station common-view geometric distance

Yinhua Liu, Ya Liu, Xiaohui Li, Yanming Guo

Proceedings Volume 13218, First Aerospace Frontiers Conference (AFC 2024); 132180H (2024) https://doi.org/10.1117/12.3032460
Event: First Aerospace Frontiers Conference (AFC 2024), 2024, Xi’an, China

Abstract

Making good use of Space Station and maximizing its value is the important work in the manned spaceflight field currently. The time and frequency resources in Chinese Space Station are better than that loaded in the navigation satellite. Thus the accuracy of Space Station CV(common-view) time comparison can be better than GNSS(Global Navigation Satellite System) CV that realizes the highest CV accuracy now. But the low orbit characteristic of Space Station magnifies the effect of geometric distance error on CV time comparison, and the geometric distance error is one kind of main errors that need to be researched detailed in order to improve Space Station CV performance. In the paper, the magnifying phenomenon of geometric distance error on CV time comparison is analyzed in theory. Then the factors affecting geometric distance calibration are studied, including orbit error, attitude error, calibration error of antenna phase center, Space Station movement, and so on. Based on simulation experiments, the quantitative effect of these errors on CV time comparison are analyzed. The simulation results show that the Space Station geometric distance error affects the CV accuracy most greatly, and its root mean square error is about 150 pico-seconds. The simulation also shows that the attitude error causes about 20 picoseconds CV errors and the CV error caused by calibration error of antenna phase center or Space Station movement factor is in the magnitude of several pico-seconds. In order to realize the Space Station CV accuracy of several hundred or ten pico-seconds magnitude, the effect of orbit error, attitude error, calibration error of antenna phase center and Space Station movement can’t be ignored. Reducing Space Station’s orbit error is the most efficient way for CV accuracy improvement.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yinhua Liu, Ya Liu, Xiaohui Li, and Yanming Guo "Analysis of detailed errors affecting the calibration of space station common-view geometric distance", Proc. SPIE 13218, First Aerospace Frontiers Conference (AFC 2024), 132180H (16 August 2024); https://doi.org/10.1117/12.3032460

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KEYWORDS

Error analysis

Picosecond phenomena

Calibration

Satellites

Antennas

Error control coding

Satellite navigation systems

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