Abstract. Unified space platforms (USP) are increasingly being used In space projects implementation. The concept of the unification principle consists in the possibility of constructing space platforms with tactical and technical characteristics corresponding to the intended purpose of the spacecraft project from a set of reliable and tested blocks and devices, including those having flying qualifications. Application of unified space platforms is mainly aimed at providing a useful load of resources by mass, energy, operating conditions, required accuracy of orientation and stabilization, maneuvering capabilities in orbit, command and telemetry information. Basic concepts of comparative evaluation of the technical level of the universal space platforms are considered. The methods in question are reducing the multicriteria problem to a onecriterion one, by introducing a complex performance indicator that depends on partial parameters, thus performing the so-called convolution of criteria.

Keywords: unified space platforms, technical level, methodology, criteria, comparative evaluation, main characteristics

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