Orbit determination of the Next-Generation Beidou satellites with Intersatellite link measurements and a priori orbit constraints

2017 ◽  
Vol 60 (10) ◽  
pp. 2155-2165 ◽  
Author(s):  
Xia Ren ◽  
Yuanxi Yang ◽  
Jun Zhu ◽  
Tianhe Xu
Keyword(s):  
Orbit Determination ◽  
A Priori ◽  
Next Generation ◽  
Beidou Satellites

scholarly journals Precise Orbit Determination of BeiDou Satellites with Contributions from Chinese National Continuous Operating Reference Stations

2017 ◽  
Vol 9 (8) ◽  
pp. 810 ◽  
Author(s):  
Ming Chen ◽  
Yang Liu ◽  
Jiming Guo ◽  
Weiwei Song ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Orbit Determination ◽  
Precise Orbit Determination ◽  
Precise Orbit ◽  
Beidou Satellites

Precise orbit determination of Beidou Satellites with precise positioning

2012 ◽  
Vol 55 (7) ◽  
pp. 1079-1086 ◽  
Author(s):  
Chuang Shi ◽  
QiLe Zhao ◽  
Min Li ◽  
WeiMing Tang ◽  
ZhiGang Hu ◽  
...  
Keyword(s):  
Orbit Determination ◽  
Precise Orbit Determination ◽  
Precise Positioning ◽  
Precise Orbit ◽  
Beidou Satellites

Determination of the most significant factors affecting the life of tires and gear motor-wheels using a priori ranking

2019 ◽  
Vol 12 (48) ◽  
pp. 3-10
Author(s):  
E.K. Abdulaev ◽  
◽  
P.N. Maharathis ◽  
A.I. Kuzhelev ◽  
◽  
...  
Keyword(s):  
A Priori ◽  
Factors Affecting ◽  
Significant Factors

scholarly journals A Second-Order Time-Difference Position Constrained Reduced-Dynamic Technique for the Precise Orbit Determination of LEOs Using GPS

2021 ◽  
Vol 13 (15) ◽  
pp. 3033
Author(s):  
Hui Wei ◽  
Jiancheng Li ◽  
Xinyu Xu ◽  
Shoujian Zhang ◽  
Kaifa Kuang
Keyword(s):  
Orbit Determination ◽  
Dynamic Models ◽  
Precise Orbit Determination ◽  
Second Order ◽  
Time Difference ◽  
Error Sources ◽  
Precise Orbit ◽  
Unmodeled Dynamic ◽  
Reduced Dynamic

In this paper, we propose a new reduced-dynamic (RD) method by introducing the second-order time-difference position (STP) as additional pseudo-observations (named the RD_STP method) for the precise orbit determination (POD) of low Earth orbiters (LEOs) from GPS observations. Theoretical and numerical analyses show that the accuracies of integrating the STPs of LEOs at 30 s intervals are better than 0.01 m when the forces (<10−5 ms−2) acting on the LEOs are ignored. Therefore, only using the Earth’s gravity model is good enough for the proposed RD_STP method. All unmodeled dynamic models (e.g., luni-solar gravitation, tide forces) are treated as the error sources of the STP pseudo-observation. In addition, there are no pseudo-stochastic orbit parameters to be estimated in the RD_STP method. Finally, we use the RD_STP method to process 15 days of GPS data from the GOCE mission. The results show that the accuracy of the RD_STP solution is more accurate and smoother than the kinematic solution in nearly polar and equatorial regions, and consistent with the RD solution. The 3D RMS of the differences between the RD_STP and RD solutions is 1.93 cm for 1 s sampling. This indicates that the proposed method has a performance comparable to the RD method, and could be an alternative for the POD of LEOs.

scholarly journals Evaluation of DTRF2014, ITRF2014, and JTRF2014 by Precise Orbit Determination of SLR Satellites

2018 ◽  
Vol 56 (6) ◽  
pp. 3148-3158 ◽  
Author(s):  
Sergei Rudenko ◽  
Mathis BloBfeld ◽  
Horst Muller ◽  
Denise Dettmering ◽  
Detlef Angermann ◽  
...  
Keyword(s):  
Orbit Determination ◽  
Precise Orbit Determination ◽  
Precise Orbit
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