基于分层模式的视景仿真系统研究与设计

视景仿真系统作为虚拟现实的重要表现形式和系统仿真的重要手段,已被广泛应用于各行各业。针对视景仿真系统的可扩展性和可移植性需求,提出了一种基于分层设计模式的视景仿真系统体系结构,详细阐述了基于分层模式的视景仿真系统总体框架的建立和各个模块的设计,并通过一个导弹攻防系统的设计实现验证了该体系结构的可行性和灵活性。     

基于组件的水面战视景仿真系统关键技术研究

为了更加生动逼真地体现水面战视景仿真中导弹发射、导弹命中、舰炮开火、雷达搜索、干扰弹展开等攻防对抗的细节,针对仿真系统设计、组件化建模、组件化模型驱动等关键技术进行深入研究。提出了多粒度建模与替代子模型法相结合的组件化建模方法,通过配置链表内存映射的方法对组件化模型进行动态加载。所设计的基于组件的水面战视景仿真系统作为某大型分布式水面战仿真系统一个联邦成员,通过HLA接口接收联邦中相应联邦成员如导弹、火炮、雷达、干扰系统等的数据,在三维视景中驱动组件化模型。

Abstract：

In order to reflect more vivid details of attack and defense of surface warfare scene simulation such as missile launch, missile hit, gun fire, radar search and decoy expand, several key technologies including system designing, component-based modeling, component-based model-driven were researched. A component-based modeling method was proposed which combined multi-granularity modeling and sub-model replace. This method could load component-based model dynamically by list configuring and memory mapping. The component-based surface warfare scene simulation system designed as a federate of a large distributed surface warfare simulation system federation could receive data of the corresponding federate such as missile, artillery, radar and jamming system, and then the component-based model in the 3D scene was driven.     

一种自适应混合加权动态推算地形生成算法

针对大地形生成中严重跳变失真问题,提出了一种自适应混合加权动态推算地形生成算法。该算法研究了地形高程数据点对新生子点的权重数学建模过程,在此基础上给出了混合加权生成新子点的动态校正方法,建立了视距、LOD层级与插值点个数等三者的关联度模型。测试结果表明,该算法提供了一种可靠的大地形生成技术,实现了基于关联度模型的多层LOD自适应分级细化粗粒度模型的渐变过程,实时性与逼真度良好。