3D Simulation Technique And Realization Of UAV Based On Virtual Reality

Because of UAV's (Unmanned Aerial Vehicle) promising characteristic, it plays a more important role in many fields such as military and civil, and has drawn considerable attention recently. The observation, analysis and processing of the flight data are very important steps to simulate flight control system during the development of UAV. However, the general display method which be demonstrated in the mode of text or the two dimensional curve can't meet the need of the new increasing performances. At the same time, the technique of VR provides a good means to realize 3D simulation with the high-speed development of computer techniques.At the basis of virtual reality and UAV's control system, the thesis is engaged in researching on 3D simulation and VR realization of UAV. The designed scheme and realized methods which employ the Visual C++ and OpenGL are discussed in detail.Firstly, the theory and background of virtual reality are introduced summarily, and its five realized methods are analyzed and compared respectively. Then, the technical route and general designed scheme are determined. Secondly, according to each function modules and their design requirements of the designed scheme, the paper realizes many developments, such as environment model, UAV's body model, three dimensional scene simulation environment design, flight information display environment , etc. Furthermore, some kernel techniques, which be comprised of the plane modeling, tail flame, fly scene, the sky, the terrain, collision test, the HUD(Head-up Display), data exchange and so on, are emphasized specially. Finally, the whole system of 3D simulation for a certain UAV is completed triumphantly, and its performances are perfectly.According to the running results of 3D simulation system, it proves that the adopted technical route and designed scheme are feasible and effective. This technique has the characteristic of universality, flexibility, low cost, and so on. The achievement has an important values in UAV's engineering applications, such as the ground-testing system, remote-sensing/remote-control system and simulation system.