Abstract:In order to provide decision support for the commander in the missile experiment, a hardware-in-the-loop visual simulation system of the oceanic range based on HLA and VEGA is designed. The physicals such as the fly turntable with three axis, target simulator, load simulator, etc, are joined up the simulation system, the federal structure of simulation system is established by adopting high level architecture specification, the federal object model is designed, the mathematical models of the pivotal federal members are erected, the conflict problem of time advance between reflective memory network and HLA is resolved, which improves the real-time capability of data transmission in the simulation system. The 3D models of each simulation entity are established by adopting Multigen-Creator software, Vega software is utilized to realize the model rendering, the scene driving, and sound simulation, etc. Through the system testing, the results demonstrate that the visual simulation system can real-timely drive each simulation entity running, the visual picture is fluent, and the ratio of picture updating is more than 30 frames per second, which meets the demand of the real-time performance of the system.