船艇模拟训练战场环境三维视景的仿真设计及关键算法研究

Research of the 3D scene simulation in battlefield environment and key algorithm of a watercraft simulation training system

在船艇模拟训练系统中,首先要解决好战场环境三维视景的仿真问题。结合某型船艇装备模拟训练系统的研制,讨论了战场环境三维环境视景的总体结构、软硬件设计,分析了三维视景的技术实现,并对所涉及到的三维坐标变换、视景投影、摇摆处理、视域裁剪等关键算法进行了研究,给出了三维地形仿真效果图和船艇模拟训练视景输出仿真效果图。通过合理的设计和优化的算法,为船艇训练提供了逼真的自然环境和实战化的战场环境,较好地解决了仿真过程中船艇运动建模与实时显示的技术难题。

It is a basic work to simulate the three-dimensional scene platform in battlefield environ- ment before building a watercraft simulation training system. This paper combines the development of a novel watercraft equipment simulation training system, discussing the architecture of the three-dimensional scene subsystem and the design of the subsystem＇s hardware and software, analyzing the realization of the three-dimensional scene display, researching the key algorithm of the relative process, such as, the algorithm of three dimensions coordinate transformation, scene perspective projection, watercraft swaying disposal, visual field cut, and so on. Moreover,the effect picture of the 3D terrain simulation and the watercraft simulation training＇s scene output were given. Under the help of the logical design and the optimal algorithm,the system displayed a vivid natural environment and live operational training battlefield environment. The results show that these methods solve the main problem of the watercraft sway modeling and real-time display.