Results 31 to 40 of about 1,814,382 (210)
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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Quasi-continuous higher-order sliding mode controller designs for spacecraft attitude tracking manoeuvres [PDF]
, 2008 This paper studies high-order sliding mode control laws to deal with some spacecraft attitude tracking problems. Second and third order quasi-continuous sliding control are applied to quaternion-based spacecraft attitude tracking manoeuvres.
Pukdeboon, C. +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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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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Spacecraft magnetic attitude control using approximating sequence Riccati equations [PDF]
, 2015 This paper presents the results of a spacecraft attitude control system based on magnetic actuators designed for low Earth orbits. The control system is designed by using a nonlinear control technique based on the approximating sequence of Riccati ...
Bernelli Zazzera, Franco +2 more
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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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, 1976 An attitude control system is described in which angular rate signals are generated by rate gyros mounted closely adjacent to gimbaled engines at the rear of a vehicle.
Rupp, C. C., Vonpragenau, G. L.
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