Research On Distributed Simulation For TT&C System Of NSV

Near-Space vehicles TT&C and information transmission is the importantguarantee of military operations in space. For considering the particularity of theenvironment,it relates to electronmagnetic,space TT&C net,link communication in thefield of professional knowledges.It is of great significance to establish a distributedco-simulation platform for the works of space science.In this paper,the research of the distributed co-simulation platform is applied toNear-Space vehicles TT&C system,with the aim of solving the technical difficulties inthe design and development of large-scale simulation applications.First of all, accordingto the environmental characteristics and flight characteristics of Near-Space vehicles, inorder to solve the currently technical problems, we proposed the the overall goal andrequirement task of the system platform.According to the relationship ofmulti-subject,we design a simulation platform based on a hierarchical method,anddesign a software architecture model for distributed system based on the standard ofHLA.According to the interoperability and reusability of the distributed simulationapplication,we design the transmission strategy and promoting strategy of timemamagem for the distributed simulation. For the practical problems of development,wedesign quadratic exploitation strategy;database management strategy;messageinteraction strategy and so on.we complete the design of OMT list,including objectmodel indentification table,object class structure table,interaction class structuretable,attribute table,parameter table,enumerated datatype table,and complex datatypetable. Finally,we show the implementation results of co-simulation platform, and designthe assessment method in order to compute the data interactive performance in run-timeenvironment.