Results 341 to 350 of about 383,072 (432)

Adaptive Neural Network Control of a Flexible Spacecraft Subject to Input Nonlinearity and Asymmetric Output Constraint

IEEE Transactions on Neural Networks and Learning Systems, 2021
This article focuses on the vibration reducing and angle tracking problems of a flexible unmanned spacecraft system subject to input nonlinearity, asymmetric output constraint, and system parameter uncertainties.
Yu Liu, Xiongbin Chen, Yilin Wu, He Cai, H. Yokoi   +4 more
semanticscholar   +1 more source

Command Filtered Backstepping-Based Attitude Containment Control for Spacecraft Formation

IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2021
In this paper, the problem of adaptive finite-time attitude containment control for multiple spacecrafts with unknown external disturbances in spacecraft formation flying is investigated.
Lin Zhao, Jinpeng Yu, P. Shi
semanticscholar   +1 more source

Model-Free Prescribed Performance Control for Spacecraft Attitude Tracking

IEEE Transactions on Control Systems Technology, 2021
The problem of flexible spacecraft attitude tracking control with guaranteeing the prescribed performance is investigated. First, the Lagrangian model of the flexible spacecraft is derived. Then, a model-free control law is proposed, in which information
Yabo Hu, Y. Geng, Baolin Wu, Danwei W. Wang   +3 more
semanticscholar   +1 more source

Deep Reinforcement Learning for Spacecraft Proximity Operations Guidance

Journal of Spacecraft and Rockets, 2021
This paper introduces a guidance strategy for spacecraft proximity operations, which leverages deep reinforcement learning, a branch of artificial intelligence.
K. Hovell, S. Ulrich
semanticscholar   +1 more source

The MESSENGER Spacecraft [PDF]

Space Science Reviews, 2007
The MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft was designed and constructed to withstand the harsh environments associated with achieving and operating in Mercury orbit. The system can be divided into eight subsystems: structures and mechanisms (e.g., the composite core structure, aluminum launch vehicle ...
Robin M. Vaughan, Elliot H. Rodberg, Samuel Wiley, Mary A. Mirantes, Richard F. Conde, J. C. Leary, David G. Grant, Carl S. Engelbrecht, Dipak Srinivasan, David F. Persons, Larry E. Mosher, Tracy A. Hill, M. V. Paul, George Dakermanji, Karl B. Fielhauer, Theodore J. Hartka, S. E. Jaskulek, Carl J. Ercol   +17 more
openaire   +1 more source

Spacecraft charging - An update [PDF]

34th Aerospace Sciences Meeting and Exhibit, 1996
Summary form only given. Nearly twenty years after the landmark SCATHA program, spacecraft charging and its associated plasma interactions continue to be major issues for Earth-orbiting spacecraft. Although typically thought of as a surface effect on geosynchronous spacecraft, internal charging and low-altitude phenomena are increasingly causing ...
Henry B. Garrett, A.C. Whittlesey
openaire   +4 more sources

Deep Learning Techniques for Autonomous Spacecraft Guidance During Proximity Operations

Journal of Spacecraft and Rockets, 2021
This paper investigates the use of deep learning techniques for real-time optimal spacecraft guidance during terminal rendezvous maneuvers, in presence of both operational constraints and stochasti...
Lorenzo Federici, Boris Benedikter, A. Zavoli   +2 more
semanticscholar   +1 more source

Faster Fixed-Time Control of Flexible Spacecraft Attitude Stabilization

IEEE Transactions on Industrial Informatics, 2020
The rapid attitude stabilization problem of flexible spacecraft with uncertain inertia and disturbances is investigated. In this article, a sliding mode-based fixed-time control approach is presented with a new fixed-time surface ensuring a faster ...
Lu Cao, B. Xiao, M. Golestani, Dechao Ran   +3 more
semanticscholar   +1 more source

Neural Network-Based Pose Estimation for Noncooperative Spacecraft Rendezvous

IEEE Transactions on Aerospace and Electronic Systems, 2020
This article presents the Spacecraft Pose Network (SPN), the first neural network-based method for on-board estimation of the pose, i.e., the relative position and attitude, of a known noncooperative spacecraft using monocular vision.
Sumant Sharma, S. D’Amico
semanticscholar   +1 more source