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Information × Registration Number 0216U003332, 0112U001672 , R & D reports Title Development of robust methods for spacecraft control under uncertainty popup.stage_title Head Gubarev Vyacheslav Fedorovich, Доктор технічних наук Registration Date 26-01-2016 Organization Space Research Institute of National Academy of Sciences of Ukraine and State Space Agency of Ukraine popup.description2 The investigation goal is to obtain fundamental knowledge and its application to social needs of Ukraine in the framework of the development of robust methods for spacecraft control necessary to solve urgent problems of space research. The theoretical results of DS analysis and control synthesis are primarily focused on the development of precision control systems for orientation and navigation of current and future space crafts with increased autonomy and operation reliability in space. The results: Robust methods of ellipsoidal estimation of state vectors and DC parameters under given guaranteed restrictions on the intensity of measurement noise and external disturbances are developed. The developed robust estimation methods are used to obtain estimates of current parameters of the spacecraft orientation under incompleteness and uncertainty of measurement data of on-board devices. Estimation methods of DS range sets under restricted external disturbances are developed and applied to the evaluation of range sets of spacecraft orientation control systems. Based on these methods, ellipsoidal approximation trajectory tubes for spacecraft orientation control were constructed for the first time. The effectiveness of the developed methods was confirmed by the results of computer simulation of the dynamics of a spacecraft orientation control system, which was used to compare the topological properties of the range sets and corresponding boundary sets. It is shown that common use of range sets and boundary sets provides better accuracy estimates of spacecraft orientation control than each of them separately. An algorithm for adaptive control of spacecraft orientation redundant systems of electric flywheel (EDM) and recovery of their controllability using Earth's magnetic field is developed. A method of reconfiguration of control algorithms under failures of individual EDM is proposed Product Description popup.authors Волосов Віктор Вікторович Губарев Вячеслав Федорович Компанієнко Лілія Григорівна Кунцевич Всеволод Михайлович Мельничук Сергый Володимирович Сімаков В.О Сальніков Микола Миколайович Царук Ніна Петрівна Шевченко Володимир Миколайович popup.nrat_date 2020-04-02 Close