| Electronic Warfare is an important means of modern warfare in the modern battlefield ,and it has a increasingly prominent role. However, the Electronic Warfare has a very complex electromagnetic environment, weapons and equipments are relatively high dependence on the environment, so combat exercise have obvious limitations. Combat exercises took longer time, cost is relatively large, the results of the exercise was significantly affected by environmental factors,and the results can not be repeated. In recent years, with the rapid development of computer technology and simulation technology, using the computer simulation technology to build realistic virtual battlefield environment for the electronic warfare simulation study is a flexible and convenient way.This paper took the visual tranning of electronic warfare forces as the starting point, the theory of electronic warfare as the core, based on virtual reality technology, and discussed the means of building three-dimensional navigation system. First of all, this paper introduces the research background, describes the system architecture of visual simulation system, describes the function and status of three-dimensional view subsystem.Then, realized three-dimensional navigation system through the OpenGL technology, and build a realistic battlefield enviroment. At last, introduced means of realizing three-dimensional navigation system, and did some study about weather effect in three-dimensional scene.Successful developing of visual simulation system provided a study platform for our army, and made up the lack of combat exercises. Also, the three-dimensional navigation system became a highlight. |