no code implementations • 16 Jun 2022 • Ricardo Rodrigues, Valentin Preda, Francesco Sanfedino, Daniel Alazard
This paper outlines a complete methodology for modeling an on-orbit servicing mission scenario and designing a feedback control system for the attitude dynamics that is guaranteed to robustly meet pointing requirements, despite model uncertainties as well as large inertia and flexibility changes throughout the mission scenario.
no code implementations • 19 May 2022 • Matthis H. de Lange, Chris Verhoek, Valentin Preda, Roland Tóth
Obtaining models that can be used for control is of utmost importance to ensure the guidance and navigation of spacecraft, like a Generic Parafoil Return Vehicle (GPRV).
no code implementations • 25 Jan 2022 • Tomas Pippia, Valentin Preda, Samir Bennani, Tamas Keviczky
In this context, we consider the problem of reconfiguration of a satellite constellation in a circular formation.
no code implementations • 19 May 2021 • Valentin Preda, Andrew Hyslop, Samir Bennani
This paper introduces an algorithm to perform optimal reorientation of a spacecraft during a high speed flyby mission that maximizes the time a certain target is kept within the field of view of scientific instruments.
no code implementations • 7 May 2021 • Francesco Sanfedino, Daniel Alazard, Valentin Preda, Davide Oddenino
A Linear Parameter-Varying observer, scheduled by the solar array rotor angle, is finally proposed in order to estimate the disturbance torques induced by the gearbox imperfections just using the measurements coming from a classical attitude control system: a star tracker and a gyrometer.
1 code implementation • 3 May 2021 • Antoine Leeman, Valentin Preda, Irene Huertas, Samir Bennani
To overcome the limitations of current parafoil precision landing capabilities, an efficient real-time convex optimized guidance and control strategy is presented.