Signal-In-Space Precision Analysis for IGSO and MEO Satellites of BDS Considering the Age of Data
Abstract The paper analyzes the characteristics of AODE in broadcast ephemeris for different orbit of BDS from 2013 to 2015. According to the AODE distribution of IGSO and MEO, the signal-in-space accuracy based on different AODE is analyzed in the paper. The results show: AODE of satellites is in period and is consistent with the orbit. For IGSO satellites, the average AODE is about 1.7 hours, reaching to a maximum of 7 hours. Considering orbit alone, the URE of different AODE varies 0.5 m at the worst. For MEO satellites, the average AODE is about 11 hours, and the maximum reachedis two days. Considering orbit alone, the URE of different AODE varies 0.9 m for the worst. During 2013 to 2015,the average URE of IGSO satellites are 0.81 m, 0.84 m and 1.11 m; for MEO satellites they are 0.84 m, 0.82 m and 1.04 m.
Key words ：
BDS
navigation message
AODE
signal-in-space precision
Cite this article:
LIU Yuxi,JIA Xiaolin. Signal-In-Space Precision Analysis for IGSO and MEO Satellites of BDS Considering the Age of Data[J]. jgg, 2018, 38(4): 390-393.
LIU Yuxi,JIA Xiaolin. Signal-In-Space Precision Analysis for IGSO and MEO Satellites of BDS Considering the Age of Data[J]. jgg, 2018, 38(4): 390-393.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2018/V38/I4/390
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