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Showing 1 to 7 of 7 for “"Spacecraft Attitude Dynamics"”.
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Adaptive Control Applied to the Cal Poly Spacecraft Attitude Dynamics Simulator
The goal of this thesis is to use the Cal Poly Spacecraft Attitude Dynamics Simulator to provide proof of concept of two adaptive control theories developed by former Cal Poly students: Nonlinear Direct Model Reference Adaptive Control and Adaptive Output Feedback Control. The Spacecraft Attitude …
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System Integration and Attitude Control of a Low-Cost Spacecraft Attitude Dynamics Simulator
The CalPoly Spacecraft Attitude Dynamics Simulator mimics the rotational dynamics of a spacecraft in orbit and acts as a testbed for spacecraft attitude control system development and demonstration. Prior to this thesis, the simulator platform and several subsystems had been designed and …
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An Autonomous Underwater Vehicle for Validating Internal Actuator Control Strategies
… strategies using internal actuators. Vehicle attitude control is provided by three orthogonally mounted reaction wheels. The housing is a spherical glass pressure vessel, which contains all of the components, such as actuators, ballast system, power supply, on-board computer and inertial …
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Centimeter-Scale Spacecraft: Design, Fabrication, And Deployment
… Many of these components are suitable for use in spacecraft. Their availability has led to the ongoing revolution in small satellites, most visibly exemplified by the CubeSat standard. This study seeks to push these trends toward their ultimate extreme: a satellite-on-a-chip. The ability to mass …
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A nonlinear control algorithm for fuel optimal attitude control using reaction jets
… time-fuel optimal control algorithm for spacecraft attitude dynamics using on-off gas jets. In the development of a controller, we explore four control algorithms within a single-step control framework where the step is the fundamental update time of the digital controller. The benchmark …
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The Distributed Spacecraft Attitude Control System Simulator: From Design Concept to Decentralized Control
A spacecraft formation possesses several benefits over a single-satellite mission. However, launching a fleet of satellites is a high-cost, high-risk venture. One way to mitigate much of this risk is to demonstrate hardware and algorithm performance in groundbased testbeds. It is typically …
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A Nonlinear Magnetic Controller for Three-Axis Stability of Nanosatellites
… magnetic control for three-axis stability of a spacecraft is examined. Two controllers, a proportional-derivative controller and a constant coefficient linear quadratic regulator, are applied to the system of equations describing the motion of the spacecraft. The stability of each is checked for …