Space Environment Elements Modeling & Simulation Based On HLA

During the last twenty years in the past century, most countries had already made a great success in studying ground environment by information technology, visualization technology and the systemic simulation, and assisting people in understanding, analyzing and utilizing the ground environment, and furthermore, offering assistant decisions and solutions for the human activity. With the extending of human activity scope and the enhancing of the space mission, the study on the space environment has been paid more and more attention. Being the same as the ground environment, the space environment is the essential facter for space science research. So it is the base for the human beings to use and enter into the space in investigating the space environment and the space environment effection, and discovering and understand its rules through investigation.On the base of the deep investigation in the space environment elements modeling, the visualization simulation, the distribution interactive simulation, the digital earth technology and so on, in the thesis we had creatively applied the theory and methods of the systemic simulation and the space information system to the space environment research, and advanced the space environment information system (SpenIS) concept. Baed upon SpenIS, we set up the technology framework for the space environment elements modeling ang simulation, emphasized the space environment elements and its effection 3D modeling ang visualization simulation. At the same time, based on the simulation repetition and the module development idea, we gave out a detailed design scheme on the "the space environment simulation platform" federation and focused on the exploitation of "the space environment elements simulation" federates, which provide a uniform space environment setting and technology development simulation platform for the space science research. In this thesis, our main creative research jobs comprise the following parts:1. The "space environment simulation platform" federation is designed according to the FEDEP (Federation Development and Execution Process Model) and the function analysis on the "space environment simulation platform". A detailed designment and realization scheme is given on the "the space environment elements simulation" federates based on HLA. Based on the research of the federates development and running flow and a deep analysis on the configuration of "the space environment elements simulation" federates with the Object Oriented Model technique, an object relation structure figure is designed for the federates and also a Simulation Object Model (SOM) table is set up for it. Moreover, the "space environment elements simualtion" federates is constructed by KD-Fedwizard tool.2. A new conception of the "space environment information system" (SpenIS) is put forward, and its fundamental theory, technical framework and realization approaches are also founded in the paper. Additionaly, further discussion is given on its multi-dimensional dynamic space environment model, the space-time spatial enviroment model and the space environment information transmission model. According to the exploration about the unified basis of the GIS and SpenIS technologies, some applausible realiation schemes are brought forward for SpenIS and a preliminary space enviroment database is built. Compared with "the digital earth" and "the digital space", the SpenIS expanded the research object and contents from the ground objects to the entire sun-earth space objects and environment and creatively applied...