Reference for citation: Pavlov A. N., Kolesnik D. Yu., Gordeev A. V. Technique for improving the reliability of the application of multi-satellite group of small spacecrafts for remote sensing of the Earth. Journal of Instrument Engineering. 2024. Vol. 67, N 11. P. 975–983 (in Russian). DOI: 10.17586/0021-3454-2024-67-11-975-983.

Abstract. Absctact. The relevance of the scientific task of increasing the reliability of the use of a multi-satellite grouping of small spacecrafts for remote sensing of the Earth in the maintenance of geographically distributed observation objects is formulated. A method of operational change of configuration of functional elements of onboard systems of small spacecraft remote sensing equipment involved in detailed observation of an object is proposed, taking into account rational consumption of the system technical resource of the group in order to improve the reliability indicators of its application. The motion control system of small spacecraft during implementation of precise orientation and retargeting modes is considered as the main on-board system. A description of the input data for implementation of the process of planning operational change of configuration of functional elements of on-board equipment is given. The process of configuration selection consists of two stages: construction of a functional integrity scheme and formation of a probabilistic polynomial of successful operation of the motion control system and solution of the problem of selection of the optimal configuration taking into account the current mean time between failures of the functional elements of the system; the results of computational experiments are presented. The developed method is brought to the level of practical application, allowing for uniform consumption of the system technical resource of the small spacecraft group during its intended use.

Keywords: multi-satellite grouping, remote sensing of the Earth, geographically distributed object of observation, technical resource, choice of onboard complex configuration

Acknowledgement: the study was supported by the Russian Science Foundation, grant No. 24-29-00706.

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