Spacecraft relative guidance via spatio-temporal resolution in atmospheric density forecasting

Guglielmo, David; Pérez, David; Bevilacqua, Riccardo; Mazal, Leonel

doi:10.1016/j.actaastro.2016.08.016

Cited by 6 publications

(4 citation statements)

References 36 publications

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“…In the same year, Cho et al [62] developed a chattering free sliding mode controller based on the insights from [57] and Peréz and Bevilacqua [63] proposed using artificial neuronal networks to predict the future behavior of the density in order to enhance the fidelity of the created guidance trajectories. The method was further advanced to reflect the dependence on spatial and temporal differences, donated as spatial-temporal resolution, in a follow-up publication by Guglielmo et al [64] published in the same year.…”

Section: Rendezvous Scenariomentioning

confidence: 99%

“…However, instead of a linear model, artificial neural networks were used. Even more realistic results can be obtained using a method denoted as spatiotemporal resolution developed by Guglielmo et al [64], which reflects the dependence of the density on both spatial and temporal differences [64,117]: "Spatiotemporal resolution can be achieved by propagating multiple orbits of spacecraft using a density forecast/estimate, varying the ballistic coefficient for each one. The density-location pairs result in the creation of a density field.…”

Section: Coping With Uncertaintiesmentioning

confidence: 99%

“…Interpolating the uploaded density field allows the creation of a relative guidance trajectory" [64].…”

Section: Coping With Uncertaintiesmentioning

confidence: 99%

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On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight

et al. 2019

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In order for a satellite formation to maintain its intended design despite present perturbations (formation keeping), to change the formation design (reconfiguration) or to perform a rendezvous maneuver, control forces need to be generated. To do so, chemical and/or electric thrusters are currently the methods of choice. However, their utilization has detrimental effects on small satellites' limited mass, volume and power budgets. Since the mid-eighties, the potential of using differential drag as a means of propellant-less source of control for satellite formation flight is actively researched. This method consists of varying the aerodynamic drag experienced by different spacecraft, thus generating differential accelerations between them. Its main disadvantage, that its controllability is mainly limited to the in-plain relative motion, can be overcome by using differential lift as a means to control the out-of-plane motion. Due to its promising benefits, a variety of studies from researchers around the world have enhanced the state-of-the-art over the past decades which results in a multitude of available literature. In this paper, an extensive literature review of the efforts which led to the current state-of-the-art of different lift and drag based satellite formation control is presented. Based on the insights gained during the review process, key knowledge gaps that need to be addressed in the field of differential lift in order to enhance the current state-of-the-art are revealed and discussed. In closer detail, the interdependence between the feasibility domain / the maneuver time and increased differential lift forces achieved using advanced satellite surface materials promoting quasi-specular or specular reflection, as currently being developed in the course of the DISCOVERER project, is discussed. Keywords Satellite aerodynamics • differential lift • differential drag • formation flight control • propellant less control Acknowledgements This project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No. 737183. This reflects only the author's view and the European Commission is not responsible for any use that may be made of the information it contains. The author would like to thank the reviewers, the DISCOVERER team as well as several colleagues from IRS for their valuable feedback and suggestions.

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Section: Rendezvous Scenariomentioning

confidence: 99%

Section: Coping With Uncertaintiesmentioning

confidence: 99%

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On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight

et al. 2019

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“…The atmospheric density is allowed to be time varying, as is the case for real missions. Almost all prior work in differential drag, except for Guglielmo et al 20 , assumes a constant density. Intra-constellation coupling is also included when computing the control.…”

Section: Introductionmentioning

confidence: 99%

Differential Drag Control Scheme for Large Constellation of Planet Satellites and On-Orbit Results

Foster,

Mason,

Vittaldev

et al. 2018

Preprint

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A methodology is presented for the differential drag control of a large fleet of propulsion-less satellites deployed in the same orbit. The controller places satellites into a constellation with specified angular offsets and zero-relative speed. Time optimal phasing is achieved by first determining an appropriate relative placement, i.e. the order of the satellites. A second optimization problem is then solved as a large coupled system to find the drag command profile required for each satellite. The control authority is the available ratio of low-drag to high-drag ballistic coefficients of the satellites when operating in their background mode. The controller is able to successfully phase constellations with up to 100 satellites in simulations. On-orbit performance of the controller is demonstrated by phasing the Planet Flock 2p constellation of twelve cubesats launched in June 2016 into a 510 km sun-synchronous orbit.

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Influence of energy accommodation on a robust spacecraft rendezvous maneuver using differential aerodynamic forces

2019

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Spacecraft relative guidance via spatio-temporal resolution in atmospheric density forecasting

Cited by 6 publications

References 36 publications

On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight

On the exploitation of differential aerodynamic lift and drag as a means to control satellite formation flight

Differential Drag Control Scheme for Large Constellation of Planet Satellites and On-Orbit Results

Influence of energy accommodation on a robust spacecraft rendezvous maneuver using differential aerodynamic forces

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