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Attitude Regulation With Bounded Control in the Presence of Large Disturbances With Bounded Moving Average

IEEE/CAA Journal of Automatica Sinica 2022年第5期9卷 834-846页

作者： Ang Li Alessandro Astolfi Ming Liu School of Astronautics Harbin Institute of TechnologyHarbin 150080China Department of Electrical and Electronic Engineering Imperial College LondonLondon SW72AZUK Dipartimento di Ingegneria Civile e Ingegneria Informatica University of Rome Tor VergataRoma 00133Italy IEEE

The attitude regulation problem with bounded control for a class of satellites in the presence of large disturbances,with bounded moving average,is solved using a Lyapunov-like design.The analysis and design approaches are introduced in the case in which the underlying system is an integrator and are then applied to the satellite attitude regulation problem.The performance of the resulting closed-loop systems are studied in detail and it is shown that trajectories are ultimately bounded despite the effect of the persistent disturbance.Simulation results on a model of a small satellite subject to large,but bounded in moving average,disturbances are presented.

关键词： control cubesats robust attitude regulation ultimate boundedness

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Qualification and validation test methodology of the open-source CubeSat FloripaSat-I

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Journal of Systems Engineering and Electronics 2020年第6期31卷 1230-1244页

作者： MARCELINO Gabriel Mariano FILHO Edemar Morsch MARTINEZ Sara Vega DE MATTOS AndréMartins Pio SEMAN Laio Oriel SLONGO Leonardo Kessler BEZERRA Eduardo Augusto Department of Electrical Engineering Federal University of Santa CatarinaFlorianópolis 88040-900Brazil SENAI Institute of Innovation in Embedded Systems Florianópolis 88054-700Brazil School of Sea Science and TechnologyUniversity of Vale do ItajaíItajaí88302-901Brazil

The FloripaSat-I project consists of an initiative from the Federal University of Santa Catarina(UFSC),in Brazil,to train students to design,test and integrate innovative space systems.The group just developed its first open-source CubeSat,the FloripaSat-I,which aims to empower students to develop space systems through a practical approach,where they have full control of the design and test of a real spacecraft.The project has already gone through all the stages of a CubeSat mission prior to the launching and operation stages.A prototype of the satellite,as well the engineering models 1 and 2(EM-I and EM-II)were built.The expertise provided by the engineering models allows the development of a functional flight model(FM).This paper presents the validation and qualification tests that pass various FloripaSat-I models,from the engineering model to the flight model.All stages of the project are described,the tests performed in each phase,as well as the lessons learned.Thus,this paper serves as a guidance for other university teams that want to test their own cubesats,as well as teams that want to use the open-source hardware and software left as heritage by this project.

关键词： embedded system nanosatellite cubesats test methodology

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