Research On Model Framework Of Raw Data Generation For Navigation System Based On SMP2

The simulation of raw data generation (RDG) is an important part of the simulation of navigation system. Raw data generation involves multidisciplinary, such as astronomy, atmosphere and communication, so it is necessaryfor for the people from different domain to work together. The largeness of models and algorithms, and the complexity of interface and data flow characterize the simulation of raw data generation.Conventional technology of modelling and simulation can hardly encounter the difficulty. Simulation Model Portability (SMP) which aims to improve the portability and reuse of simulation model, standardize and simplify the interface of simulation model, and separate the implement from the simulation models. It is specially suit for the simulation of spacecraft. This paper discuse the mechanism of modelling and simulation, and take an emphasis on the study on the integrating mechanism, then propose the method of establishing the model framework based on SMP2.The thesis takes the simulation of raw data generation of navigation system as the research background, and focuses on the research the model framework of raw data generation. The contents and innovations are summarized into the following parts:(1)Discuss the mechanism of modelling and simulation based on SMP2, and study its integrating mechanism.(2)Propose an original model system of raw data generation, study the modes system through entity analysis, data flow analysis and object oriented analysis;(3)Establish a model framework of raw data generation based on SMP2, and discuss the assembly and schedule of its simulation models.(4)Discuss the schedule framework and partly validate the framework through simulation experimentation.