Guidance for autonomous spacecraft repointing under attitude constraints and actuator limitations

Ponche, Alison; Marcos, Andrés; Ott, Thomas; Geshnizjani, Ramin T.; Loehr, Johannes

doi:10.1016/j.actaastro.2023.03.020

Cited by 3 publications

(2 citation statements)

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“…The design, implementation, and testing of algorithms for slewing or tracking maneuvers is an active research area, with the final objective of identifying suitable feedback schemes, effective and accurate for autonomous attitude control. Recent contributions highlight the growing interest toward agile attitude maneuvers for remote sensing applications [11][12][13][14]. In particular, Poche et al [13] investigate autonomous guidance for slewing maneuvers, while taking actuator limitations into account.…”

Section: Introductionmentioning

confidence: 99%

“…Recent contributions highlight the growing interest toward agile attitude maneuvers for remote sensing applications [11][12][13][14]. In particular, Poche et al [13] investigate autonomous guidance for slewing maneuvers, while taking actuator limitations into account. Gordon et al [15] consider the effects of model fidelity and parameter uncertainty on the performance of a feedback feedforward algorithm for attitude tracking of a satellite with flexible appendages.…”

Section: Introductionmentioning

confidence: 99%

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Intersatellite and Downlink Agile Attitude Maneuvers

Posani,

Pontani,

Gasbarri

2023

Applied Sciences

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This research is focused on the problem of agile attitude maneuvering, aimed at the precise pointing of a satellite forming a typical constellation in low Earth orbit. We consider two different operational scenarios: (a) pointing toward a specific ground station, located on the Earth surface (for downlink data routing), and (b) pointing toward a companion satellite (for establishing an intersatellite connection). The two preceding operational requirements can both be formulated as attitude tracking problems. In this study, we use an inertia-free nonlinear attitude control algorithm based on rotation matrices and possessing remarkable stability properties, in conjunction with a pyramidal array of single-gimbal control momentum gyroscopes. Numerical simulations, in both nominal and nonnominal flight conditions, demonstrate that the attitude control architecture proposed in this work is effective for the purpose of performing agile attitude maneuvering, aimed at precise pointing during downlink and intersat data routing.

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