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Authors = Dmitry Pritykin ORCID = 0000-0003-2017-4449

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19 pages, 4481 KiB  
Article
Decentralized Differential Aerodynamic Control of Microsatellites Formation with Sunlight Reflectors
by Kirill Chernov, Uliana Monakhova, Yaroslav Mashtakov, Shamil Biktimirov, Dmitry Pritykin and Danil Ivanov
Aerospace 2023, 10(10), 840; https://doi.org/10.3390/aerospace10100840 - 26 Sep 2023
Cited by 5 | Viewed by 1411
Abstract
The paper presents a study of decentralized control for a satellite formation flying mission that uses differential lift and drag to enforce the relative positioning requirements. All spacecraft are equipped with large sunlight reflectors so that, given the appropriate lighting conditions, the formation [...] Read more.
The paper presents a study of decentralized control for a satellite formation flying mission that uses differential lift and drag to enforce the relative positioning requirements. All spacecraft are equipped with large sunlight reflectors so that, given the appropriate lighting conditions, the formation as a whole can be made visible from the Earth as a configurable pixel image in the sky. The paper analyzes the possibility of achieving a pre-defined lineup of the formation by implementing decentralized aerodynamic-based control through the orientation of sunlight reflectors relative to the incoming airflow. The required relative trajectories are so-called projected circular orbits which ensure the rotation of the image with the orbital period. The choice of the reference trajectory for each satellite is obtained by minimizing the total sum of relative trajectory residuals. The control law is based on the linear-quadratic regulator with the decentralized objective function of reducing the mean deviation of each satellite’s trajectory relative to the other satellites. The accuracy of the required image construction and convergence time depending on the initial conditions and orbit altitude are studied in the paper. Full article
(This article belongs to the Special Issue Advances in CubeSat Sails and Tethers)
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27 pages, 5481 KiB  
Article
Satellite Formation Flying for Space Advertising: From Technically Feasible to Economically Viable
by Shamil Biktimirov, Gleb Belyj and Dmitry Pritykin
Aerospace 2022, 9(8), 419; https://doi.org/10.3390/aerospace9080419 - 1 Aug 2022
Cited by 10 | Viewed by 18580
Abstract
The paper presents a feasibility study of satellite formation-flying missions for space advertising. To estimate a space advertising mission viability, the global population coverage model is designed and the demonstration schedule with a focus on larger cities is optimized for the formation of [...] Read more.
The paper presents a feasibility study of satellite formation-flying missions for space advertising. To estimate a space advertising mission viability, the global population coverage model is designed and the demonstration schedule with a focus on larger cities is optimized for the formation of small satellites deployed in repeat ground track Sun-synchronous orbits. Monetization of an image demonstration over a city depends on the city population, outdoor advertising cost, and parameters limiting the number of potential advertising observations. Formation lifetime expressed in terms of fuel consumption for image reconfigurations and maintenance is one of the key factors and is analyzed via numerical simulation of satellite formation-flying dynamics and control. Full article
(This article belongs to the Special Issue Distributed Space Systems: Applications, Deployment and Control)
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