The Experts below are selected from a list of 249084 Experts worldwide ranked by ideXlab platform
Henry Garrett - One of the best experts on this subject based on the ideXlab platform.
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Spacecraft-environment interactions
Spacecraft-Environment Interactions by Daniel Hastings Henry Garrett Cambridge UK: Cambridge University Press 2004, 1996Co-Authors: Daniel E. Hastings, Daniel Hastings, Henry GarrettAbstract:Spacecraft interact with the space environment in ways that may affect the operation of the Spacecraft as well as any scientific experiments that are carried out from the Spacecraft platform. In turn the study of these interactions provides information on the space environment. The adverse environmental effects, such as the effect of the radiation belts on electronics, and Spacecraft charging from the magnetospheric plasma, means that designers need to understand interactive phenomena to be able to effectively design Spacecraft. This has led to the new discipline of Spacecraft-environment interactions. The emphasis in this book is on the fundamental physics of the interactions. Spacecraft-Environment Interactions is a valuable introduction to the subject for all students and researchers interested in the application of fluid, gas, plasma and particle dynamics to Spacecraft and for Spacecraft system engineers.
Daniel E. Hastings - One of the best experts on this subject based on the ideXlab platform.
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Spacecraft-environment interactions
Spacecraft-Environment Interactions by Daniel Hastings Henry Garrett Cambridge UK: Cambridge University Press 2004, 1996Co-Authors: Daniel E. Hastings, Daniel Hastings, Henry GarrettAbstract:Spacecraft interact with the space environment in ways that may affect the operation of the Spacecraft as well as any scientific experiments that are carried out from the Spacecraft platform. In turn the study of these interactions provides information on the space environment. The adverse environmental effects, such as the effect of the radiation belts on electronics, and Spacecraft charging from the magnetospheric plasma, means that designers need to understand interactive phenomena to be able to effectively design Spacecraft. This has led to the new discipline of Spacecraft-environment interactions. The emphasis in this book is on the fundamental physics of the interactions. Spacecraft-Environment Interactions is a valuable introduction to the subject for all students and researchers interested in the application of fluid, gas, plasma and particle dynamics to Spacecraft and for Spacecraft system engineers.
Randal W. Beard - One of the best experts on this subject based on the ideXlab platform.
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Formation feedback control for multiple Spacecraft via virtual structures
IEE Proceedings - Control Theory and Applications, 2004Co-Authors: Wei Ren, Randal W. BeardAbstract:Formation control ideas for multiple Spacecraft using the virtual\nstructure approach are presented. If there is no formation feedback\nfrom the Spacecraft to the virtual structure, the Spacecraft will\nget out of formation when the virtual structure moves too fast for\nthe Spacecraft to track due to Spacecraft control saturation or the\ntotal system must sacrifice convergence speed in order to keep the\nSpacecraft in formation. The Spacecraft may also get out of formation\nwhen the system is affected by internal or external disturbances.\nTo overcome these drawbacks, an idea of introducing formation feedback\nfrom the Spacecraft to the virtual structure is illustrated in detail.\nAn application of these ideas to multiple Spacecraft interferometers\nin deep space is given.
Daniel Hastings - One of the best experts on this subject based on the ideXlab platform.
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Spacecraft-environment interactions
Spacecraft-Environment Interactions by Daniel Hastings Henry Garrett Cambridge UK: Cambridge University Press 2004, 1996Co-Authors: Daniel E. Hastings, Daniel Hastings, Henry GarrettAbstract:Spacecraft interact with the space environment in ways that may affect the operation of the Spacecraft as well as any scientific experiments that are carried out from the Spacecraft platform. In turn the study of these interactions provides information on the space environment. The adverse environmental effects, such as the effect of the radiation belts on electronics, and Spacecraft charging from the magnetospheric plasma, means that designers need to understand interactive phenomena to be able to effectively design Spacecraft. This has led to the new discipline of Spacecraft-environment interactions. The emphasis in this book is on the fundamental physics of the interactions. Spacecraft-Environment Interactions is a valuable introduction to the subject for all students and researchers interested in the application of fluid, gas, plasma and particle dynamics to Spacecraft and for Spacecraft system engineers.
Huiping Li - One of the best experts on this subject based on the ideXlab platform.
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continuous time model predictive control of under actuated Spacecraft with bounded control torques
Automatica, 2017Co-Authors: Huiping LiAbstract:The stabilization problem of rigid Spacecraft is essential for space explorations and operations. This paper studies the model predictive stabilization problem of a class of underactuated rigid Spacecrafts with two bounded control torques. A novel model predictive control (MPC) algorithm is designed by making use of the homogeneity of the system dynamics. In addition, a local homogeneous Lyapunov function is constructed based on which the approach to designing the terminal set and other parameters are developed. Finally, the conditions for ensuring algorithm feasibility and closed-loop stability are provided. We show that under the given conditions, the designed MPC algorithm is feasible, and the closed-loop system is asymptotically stable. Simulation and comparison studies verify that the developed results are effective and valid, and the designed controller fulfills the constraint satisfaction and achieves much faster convergence rate in comparison with conventional continuous time-varying controllers.
