Results 31 to 40 of about 1,825,811 (307)
IEEE Access, 2019 In this paper, an adaptive nonsingular terminal sliding mode control (ANTSMC) is investigated for attitude tracking of spacecraft with actuator faults. First, a nonsingular fast terminal sliding mode surface is designed to avoid the singularity.
Chenghu Jing +3 more
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Safety-Aware Optimal Attitude Pointing for Low-Thrust Satellites
Applied Sciences, 2021 In geostationary orbit, long eclipses and the seasonal variations in the direction and intensity of the solar input can cause damage to sensitive equipment during attitude maneuvers, which may inadvertently point the equipment towards the Sun.
Helen Henninger +2 more
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AerospaceMicrosatellites have significantly impacted space missions by offering advanced technology at a low cost. This study introduces an attitude determination and control algorithm for agile whiskbroom scanning maneuvers in microsatellites to enable wide ...
Xinyan Yang +3 more
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Fault-tolerant attitude control systems for spacecraft equipped with control moment gyros
Nihon Kikai Gakkai ronbunshu, 2015 This paper proposes a design method of the fault-tolerant attitude control system for spacecraft. In recent years, there has been requirement for accurate and agile attitude control of spacecraft.
Ai NOUMI, Masaki TAKAHASHI
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Magnetic attitude control for satellites [PDF]
2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601), 2004 In this paper it is proven that three-axis stabilization of satellites using magnetorqers is uniformly globally asymptotically stable (UGAS). The application of Matrosovs theorem allows for removal of the assumption that the geomagnetic (internal and external) field is periodic in order to establish this stability result.
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DronesLarge-scale solar-powered unmanned aerial vehicles possess the capacity to perform long-term missions at different altitudes from near-ground to near-space, and the huge spatial span brings strict disciplines for its attitude control such as aerodynamic ...
Yongzhao Yan +5 more
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Constrained Geometric Attitude Control on SO(3)
, 2017 This paper presents a new geometric adaptive control system with state inequality constraints for the attitude dynamics of a rigid body. The control system is designed such that the desired attitude is asymptotically stabilized, while the controlled ...
Kulumani, Shankar, Lee, Taeyoung
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Pacific Philosophical Quarterly, 2006 Abstract: I hope to show that, although belief is subject to two quite robust forms of agency, “believing at will” is impossible; one cannot believe in the way one ordinarily acts. Further, the same is true of intention: although intention is subject to two quite robust forms of agency, the features of belief that render believing less than voluntary ...
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Journal of Marine Science and EngineeringIn complex marine environments, ramp-based recovery systems for autonomous underwater vehicles (AUVs) often encounter engineering challenges such as reduced docking accuracy and success rate due to disturbances in the capture window attitude.
Zhaoji Qi +5 more
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Attitude Control of UAVs with Search Optimization and Disturbance Rejection Strategies
Mathematics, 2023 This study aims to achieve rapid and stable control of quadrotor unmanned aerial vehicles’ (UAVs) attitude by using an Active Disturbance Rejection Control (ADRC) controller.
Wensheng Li +5 more
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