Cosmic ResearchCosmic ResearchКосмические исследования0023-42063034-5502The Russian Academy of Sciences69231410.31857/S0023420625040066qnmaceArticlesСтатьиResearch ArticleParametric analysis and estimation of the worst attitude accuracy of a satelliteПараметрический анализ и оценка наихудшей точности ориентации космического аппаратаDrobyshevaA. S.ДробышеваА. С.stevens_L@mail.ruTkachevS. S.ТкачевС. С.stevens_L@mail.ruSpace Research Institute of the Russian Academy of SciencesИнститут космических исследований РАНKeldysh Institute of Applied MathematicsИнститут прикладной математики им. М.В. Келдыша РАН15082025634VOL 63, NO4 (2025)ТОМ 63, №4 (2025)40742207102025Copyright ©; 2025, Russian Academy of SciencesCopyright ©; 2025, Российская академия наук2025Russian Academy of SciencesРоссийская академия наукhttps://journals.eco-vector.com/0023-4206/article/view/692314

The paper considers the angular motion of a spacecraft under the influence of various disturbing torques. A method for studying the space of disturbing parameters is proposed to estimate the probability of attitude accuracy falling within a certain interval, as well as to identify the worst accuracy and the corresponding disturbing parameters. To analyze the structure of the entire set of disturbing parameters, a method for obtaining a statistical ensemble and further interpretation of the data is used. The worst value of the attitude accuracy is sought using the particle swarm optimization method, which takes into account the restrictions on the disturbing parameters. A numerical example of analyzing the attitude accuracy in the orbital stabilization mode by both methods is given.

В работе рассматривается угловое движение космического аппарата под воздействием различных возмущающих факторов. Предлагается методика исследования пространства возмущающих параметров для оценки вероятности попадания точности ориентации в некоторый интервал, а также выявления наихудшей точности и соответствующих ей возмущающих параметров. Для анализа структуры всего множества возмущающих параметров используется способ получения статистического ансамбля и дальнейшей интерпретации данных. Наихудшее значение точности ориентации ищется с помощью метода роя частиц, в котором учитываются ограничения на возмущающие параметры. Приведен численный пример анализа точности ориентации в режиме орбитальной стабилизации обоими способами.

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