In-flight inertia matrix estimation of a gyroless satellite
| Autor: | Carlo Nainer, Hugues Garnier, Marion Gilson, Hélène Evain, Christelle Pittet |
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| Přispěvatelé: | Nainer, Carlo, Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Centre National d’Études Spatiales [Paris] (CNES) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | HAL 5th CEAS Conference on Guidance, Navigation and Control, EuroGNC 2019 5th CEAS Conference on Guidance, Navigation and Control, EuroGNC 2019, Apr 2019, Milan, Italy |
| Popis: | International audience; Knowledge of the inertia parameters is vital to guarantee a correct attitude control of a spacecraft. The relatively low accuracy of their estimate prior to launch, together with possible changes of these quantities, make the in-orbit inertia estimation a problem of great interest. In this work, the estimation of the inertia matrix for a gyroless satellite is considered. An iterative instrumental variable algorithm is proposed that relies on the star tracker measurements. A semi-adaptive filter is designed in order to achieve low variance estimates, by taking care of both sensor noise and torque disturbances. The performance of the proposed algorithm is then analyzed via Monte Carlo simulations, using data generated from a high-fidelity simulator. |
| Databáze: | OpenAIRE |
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