Abstract. In this article we present the integration technology of spacecraft onboard systems' simulation models in original infrastructure of simulation modeling based on the international Simulation Model Portability (SMP2) standard. We have described the technological stages of metamodel building to unite onboard systems' models in a one complex solution. This technology allows to build simulation models in terms of the subject area and provides their translation into software components working in accordance with SMP2 standard. Simulation models' realization in infrastructure will make it possible to provide creation of complex solutions and will help accumulation and usage of expert knowledge about spacecraft onboard equipment function.
Abstract-We represent a method of analysis of the spacecraft onboard equipment testing on the basis of the simulation model precedent database. Simulation modeling allows to play all the possible versions of the onboard equipment functioning and the scenarios of spacecraft control command transmission. Usage of the results of simulation modeling extends the abilities of test software and helps to increase the quality of engineering solutions.
This article presents methods and software tools for modeling and analysis of space system onboard equipment operation. The authors suggest the design of a heterogeneous model uniting knowledge bases and virtual devices simulating work of data reception and transmission equipment. Model design considers tasks appearing during preparation of satellite production at a company-manufacturer of the space industry. The model can be used at the stages of designing and testing of the onboard equipment. For design support, the model allows assessment of parameters of the reception-and-transmission path and of destabilizing factor influence on communication line quality. For ground test support, the model simulates functions of the onboard equipment during command-and-software control of a spacecraft, providing reception and transmission methods for a wide range of commands and methods of generation of telemetry frame values. The comparison of precedents obtained during simulation tests with the results of the finished equipment testing, allows determination of special features of the onboard system operation that can stay unnoticed if other methods of test preparation and analysis are applied.
We represent a new approach to testing of spacecraft onboard equipment's functional control using simulation model's knowledge base for test procedures' generation. It allows to analyze characteristics of the objects under study using software models with further creation of real equipment's testing methods on their basis.
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