67 citations
- Thales (France)FR5 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Thales Alenia Space (France)4 papers
- Janssen (France)FR2 papers
- Jet Propulsion LaboratoryUS2 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR2 papers
- Sorbonne UniversitéFR2 papers
- Space Telescope Science InstituteUS2 papers
- Université Bourgogne Franche-ComtéFR2 papers
- Université Côte d'AzurFR2 papers
- Université Paris CitéFR2 papers
- Université Paris Sciences et LettresFR2 papers
5 papers
Mid-order wavefront control for exoplanet imaging: preliminary characterization of the segmented deformable mirror and Zernike wavefront sensor on HiCAT
B. Buralli, M. N'Diaye, R. Pourcelot +13
We study a mid-order wavefront sensor (MOWFS) to address fine cophasing errors in exoplanet imaging with future large segmented aperture space telescopes. Observing Earth analogs a…
Faint objects in motion: the new frontier of high precision astrometry
Fabien Malbet, Céline Boehm, Alberto Krone-Martins +83
Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint ob…
Applying Active Diagnosis to Space Systems by On-Board Control Procedures
Elodie Chanthery, Louise Travé-Massuyès, Yannick Pencolé +2
The instrumentation of real systems is often designed for control purposes and control inputs are designed to achieve nominal control objectives. Hence, the available measurements…
Periodic solutions of o.d.e. systems with a lipchitz non linearity
Bernard Rousselet
In this report, we address differential systems with Lipschitz non linearities; this study is motivated by the subject of vibrations of structures with unilateral springs or non li…
Singularity Analysis of Lower-Mobility Parallel Manipulators Using Grassmann-Cayley Algebra
Daniel Kanaan, Philippe Wenger, Stéphane Caro +1
This paper introduces a methodology to analyze geometrically the singularities of manipulators, of which legs apply both actuation forces and constraint moments to their moving pla…