Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Jean de Lafontaine"'
Autor:
Craig Underwood, Michael Daly, Christopher Bridges, QiYang Peng, Gregory Schinn, Amélie St-Amour, Alexis Parkinson, Paul Burbulea, Roman V. Kruzelecky, Yang Gao, Roberto Armellin, Ian Sinclair, Andrea Luccafabris, Piotr Murzionak, Jean de Lafontaine, Brynn Dagdick, Edward A. Cloutis
Finding suitable quantities of key resources for life-support and refueling is vital to future sustained lunar manned bases and commercial activities. There are large uncertainties in the lunar near-surface distribution of water ice volatiles and rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::315c26a09b6fdc3c5d7d9c55fd7dfbef
https://doi.org/10.5194/egusphere-egu2020-22678
https://doi.org/10.5194/egusphere-egu2020-22678
Publikováno v:
IFAC-PapersOnLine. 49:135-140
Reaction wheels (RW) are common actuators for attitude control of three-axis stabilized satellites. By exchanging momentum with the spacecraft’s body, a set of three non-planar RW is able to ensure the off-nadir fine pointing capabilities of agile
Autor:
Marie-Kiki Langelier, Jean-Francois Hamel, Stefano Santandrea, Jean de Lafontaine, Pamela Woo
Publikováno v:
IFAC-PapersOnLine. 49:146-151
This paper investigates the feasibility of a concept for acquisition and maintenance of a gyroless three-axis stabilized Sun pointing attitude from tumbling conditions on a Highly Elliptical Orbit (HEO) in the presence of sunlight, based on the sole
Publikováno v:
IFAC Proceedings Volumes. 47:9685-9690
Reaction Wheels (RW) are common actuators for three-axis stabilized satellites. This paper deals with the management of a RW assembly where four or more skewed RW are used simultaneously. Four-wheel control is commonly used on spacecraft. This paper
Publikováno v:
Canadian Aeronautics and Space Journal. 57:40-52
International space agencies have a growing interest to bring humans and robotic space vehicles back to the Moon and to support permanent manned and unmanned space exploration missions to the Moon and to other celestial bodies of the solar system. Al
Publikováno v:
IFAC Proceedings Volumes. 43:327-332
This paper presents a Verification and Validation (VV) framework that integrates Linear Fractional Transformation (LFT) and mu-analysis with simulation based VV. This innovative VV framework is developed for the terminal phase of Mars Sample Return a
Publikováno v:
The Journal of the Astronautical Sciences. 57:633-665
This paper presents four innovative techniques, three Kalman-based and one observer-based, to estimate environmental perturbation torques acting on an Earth-orbiting spacecraft. The Kalman-based techniques all use simple generic models for the state
Publikováno v:
Journal of Guidance, Control, and Dynamics. 32:290-299
Thispaperdevelopsafeedbackcontrollawthatguaranteesneighboringfuel-optimalityofthereconfigurationofa formation of Earth-orbiting formation-flying spacecraft. It aims for the case in which a specific formation is to be achieved at a specific true anoma
Publikováno v:
Acta Astronautica. 63:1246-1258
Previous work on autonomous formation flying guidance and control identified three key challenges to overcome in order to obtain a fully autonomous guidance and control loop: an accurate but simple model of relative motion about elliptical and pertur
Publikováno v:
Journal of Guidance, Control, and Dynamics. 31:238-244
This paper presents a new tool to analytically perform the guidance for reconfiguration of formation flying spacecraft. The technique consists in mapping the relative orbit elements into a fuel-equivalent space where similar displacements correspond