scholarly journals High precision orbit determination of CHAMP satellite

2006 ◽  
Vol 9 (3) ◽  
pp. 180-186 ◽  
Author(s):  
Zhao Qile ◽  
Liu Jingnan ◽  
Ge Maorong
Keyword(s):  
High Precision ◽  
Orbit Determination ◽  
Champ Satellite ◽  
Precision Orbit Determination

Routine operational and high-precision orbit determination of envisat

2003 ◽  
Vol 31 (8) ◽  
pp. 1953-1958 ◽  
Author(s):  
R. Zandbergen ◽  
M. Otten ◽  
P.L. Righetti ◽  
D. Kuijper ◽  
J.M. Dow
Keyword(s):  
High Precision ◽  
Orbit Determination ◽  
Precision Orbit Determination

High-precision orbit determination for a LEO nanosatellite using BDS-3

GPS Solutions ◽  
2020 ◽  
Vol 24 (4) ◽  
Author(s):  
Xinglong Zhao ◽  
Shanshi Zhou ◽  
Ying Ci ◽  
Xiaogong Hu ◽  
Jianfeng Cao ◽  
...  
Keyword(s):  
High Precision ◽  
Orbit Determination ◽  
Precision Orbit Determination

scholarly journals Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Qinglin Yang ◽  
Weijing Zhou ◽  
Hao Chang
Keyword(s):  
Real Time ◽  
High Precision ◽  
Orbit Determination ◽  
Estimation Method ◽  
Reference Value ◽  
Space Applications ◽  
Measuring Device ◽  
Cubature Kalman Filter ◽  
Precision Orbit Determination ◽  
Orbit Estimation

In order to enable the micro-nanosatellites equipped with microthrusters to better complete various space applications, it is necessary to estimate the thrust performance of the microthrusters in real-time on orbit. This paper proposes a real-time on-orbit estimation method for microthrust based on high-precision orbit determination. By establishing a high-precision orbit dynamic model, the microthrust generated by a microthruster is modeled as a first-order Markov model, combined with a high-precision GNSS measuring device, and the satellite position is obtained through the cubature Kalman filter algorithm, velocity, and thrust real-time on-orbit estimates. For a thrust of 100 μN, the error accuracy of the on-orbit estimation is 3.98%; for a thrust of 500 μN, the error accuracy is 1.79%; for a thrust of 5 mN, the error accuracy can be reduced to 1.43%; and when the thrust is 500 μN, the accuracy of orbit determination is 16 cm. This method solves the problem that the traditional on-orbit thrust estimation method cannot perform real-time on-orbit estimation of microthrust on the order of hundreds of μN. The real-time on-orbit estimation of microthrust of micro-nanosatellites equipped with microthrusters of the order of hundreds of micronewtons or even several mN to tens of mN has certain reference value.

Sign in / Sign up

Export Citation Format

Share Document