Fast and Near-Optimal Guidance for Docking to Uncontrolled Spacecraft
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Authors
Ventura, Jacopo
CiarciĆ , Marco
Romano, Marcello
Walter, Ulrich
Subjects
Advisors
Date of Issue
2017-12
Date
December 2017
Publisher
American Institute of Aeronautics and Astronautics (AIAA)
Language
Abstract
This paper proposes a guidance scheme for autonomous docking between a controlled spacecraft and an uncontrolled tumbling target in circular orbit. The onboard trajectory planning consists of a direct optimization method based on the inversion of the system dynamics. The trajectory components of the controlled spacecraft are imposed by using polynomial functions. Some of the polynomial coefficients are constrained to satisfy path constraints, whereas the remaining coefficients are varied parameters to be optimized. The optimal control problem is converted into a nonlinear programming problem by inverting the system dynamics. The proposed guidance scheme, based on the closed-loop implementation of this optimization problem, is applied to several scenarios. The resulting trajectories closely match the solutions of the correspondent optimal control problems. The guidance scheme is shown to perform precise maneuvers in most maneuvering situations, even in the presence of orbital perturbations. The sensitivity analysis to system uncertainties shows that the guidance is sensitive to noise on the target angular velocity, being the critical disturbance for this type of maneuvers.
Type
Article
Description
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
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NPS Report Number
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Format
17 p.
Citation
Ventura, Jacopo, et al. "Fast and near-optimal guidance for docking to uncontrolled spacecraft." Journal of Guidance, Control, and Dynamics 40.12 (2017): 3138-3154.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, it may not be copyrighted.