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- W4220753855 abstract "This work presents an attitude control strategy for Earth-imaging satellites. The proposed methodology is based on the closed-loop implementation of a direct method and a nonlinear programming solver for the quick determination of near-optimal attitude trajectories. The two optimization criteria considered are the target acquisition time and the maneuver energy associated to the actuation torques. For comparison purposes, we take under analysis alternative attitude controllers, such as a quaternion feedback Proportional-Derivative controller, a Linear Quadratic Regulator, a Model Predictive Control, and an adaptive Continuous Twisting Sliding Mode Controller. Optimality and accuracy of these controllers are assessed through simulations in a high-fidelity environment inclusive of orbital perturbations and refined model of the actuation device. Analysis of the results emphasizes the advantages of the proposed methodology over the alternative controllers." @default.
- W4220753855 created "2022-04-03" @default.
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- W4220753855 date "2022-06-01" @default.
- W4220753855 modified "2023-09-26" @default.
- W4220753855 title "A direct method-based suboptimal attitude guidance for accurate ground-target tracking maneuvers" @default.
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- W4220753855 doi "https://doi.org/10.1016/j.asr.2022.02.059" @default.
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