| Autor: |
Leomanni, Mirko, Garulli, Andrea, Giannitrapani, Antonio, Scortecci, Fabrizio |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Acta Astronautica, Vol. 167, 2020 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.actaastro.2019.11.035 |
| Popis: |
In this paper, the repeat-groundtrack orbit maintenance problem is addressed for spacecraft driven by electric propulsion. An adaptive solution is proposed, which combines an hysteresis controller and a recursive least squares filter. The controller provides a pulse-width modulated command to the thruster, in compliance with the peculiarities of the electric propulsion technology. The filter takes care of estimating a set of environmental disturbance parameters, from inertial position and velocity measurements. The resulting control scheme is able to compensate for the groundtrack drift due to atmospheric drag, in a fully autonomous manner. A numerical study of a low Earth orbit mission confirms the effectiveness of the proposed method. |
| Databáze: |
arXiv |
| Externí odkaz: |
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