【作者】 王晓明；

【导师】 黄卫权；

【作者基本信息】 哈尔滨工程大学 ， 导航制导与控制， 2012， 硕士

【摘要】 作为虚拟现实技术的一个实用性分支，计算机军事仿真技术是利用虚拟武器模型进行试验或训练的一种有效方法，具有投资少、风险低、可重复、训练效果好等优点，因而在军事领域得到了广泛的应用。导弹武器系统作为高科技武器装备，存在武器使用寿命有限、经费开支等问题，因此不能利用实际装备进行常态化训练。本文针对军事仿真系统特点，依托部队实际项目，在分析军事视景仿真系统实现的若干关键技术基础上，结合动力学原理，设计实现导弹发射阵地模拟、建立武器仿真系统的结构框架，开发了其视景仿真训练系统，该系统对提高部队操作人员的训练水平具有很高的实用价值。本文主要工作如下：1、以目前视景仿真的先进成果为基础，提出了导弹视景仿真系统的虚拟战场环境物体构造技术、战场物体建模技术以及地形地物的构造技术；通过DEM数据构造大规模地形，运用层次建模技术批量构造战场物体，同时采用纹理映射以及LOD技术对各种模型、地形进行了优化，提高了绘制的效果与速度。2、提出了武器系统的可视化仿真模型，研究了武器系统的液压起竖、飞行模型、特效、控制以及工作原理，对武器操纵、实时碰撞检测技术进行了深入探讨。根据运动学和动力学原理优化了导弹武器的飞行运动模型，提出了武器的机械运动模型和制导类武器的可视化仿真模型。3、针对导弹视景仿真系统中特效不够真实的特点，提出了基于粒子系统的环境特效以及武器特效，通过纹理映射来实现特效的真实效果，利用不同目标的标志量来实现各种特效的开关，同时采用粒子优化绘制方法提高特效的绘制速度。改进了一种基于OBB的碰撞检测方法，实现了适合导弹等高速飞行物体仿真的碰撞检测技术，提高了碰撞检测的精度与速度。4、提出导弹武器仿真的模块化体系结构框架，以Vega Prime软件为基础，实现了导弹武器系统发射阵地视景仿真，对系统的关键技术如虚拟仿真环境的构建、运动模型的实现等进行了详细描述，最后通过实验验证了导弹视景仿真系统的效率以及效果。更多还原

【Abstract】 Computer military simulation technology is a practical branch of virtual realitytechnology, which is an effective method that makes use of virtual weaponry model to testand train. The computer military simulation technology has advantages of less investment,lower risk, repeatable, good training effect, so it has been widely used.As a high-tech weaponry and equipment, missile weapon system can not be normalizedusing the actual equipment training. It has problems in weapon life, expenditure, etc.According to the characteristics of military simulation system, taking a certain type of missilesimulation training system for the project background, in the analysis of military simulationsystem to achieve a number of key technology based on the combination of dynamicprinciple, this thesis develops a virtual simulation training system of missile launch position,builds weapon simulation system framework. This system has high value to improve thetraining level of army.The main works of this thesis are as follows:Firstly, based on the current visual simulation results of advanced, the object structuretechnology and the battlefield object modeling technology and the structure of the terraintechnology of virtual battle environment are proposed in visual simulation system of missile.The large scale terrain is created through the DEM data structure, and the battlefield objectsare constructed by using level modeling technology. The terrain and models are optimized bythe texture mapping and LOD technology, and the effects of drawing and speed are improved.Secondly, the visual simulation model for weapon system is proposed. The hydraulicworkflow, fly model, effect, control and system working principle are further studied. Thetechnology to operate the weapon and to detect the real-time collision is deeply studied. Thefly models of cannon-shot and missile are improved based on kinematics and kinetics theory.The key technology and idiographic realization is proposed. The movable machine model ofweapons and visual simulation model of guidance weapons are proposed.Thirdly, in view of the special effects not enough reality in the missile visual simulationsystem, this paper proposes the environmental effects and weapon special effects based onparticle system, and creates the effects of the real effect through the texture mapping, and usesdifferent goals of the sign of implementation to improve the special effects on the switch, atthe same time improves special effects by using particle optimization method of plotting the rendering. This thesis improves a collision detection method based on the OBB, achieves thecollision detection technology of the weapons on the high speed, and improves the precisionand speed of collision detection.Finally, the missile’s modular architecture simulation framework to Vega Prime isproposed, and the launch position visual simulation system is achieved. The key technologiesof the system such as environment construction and the implementation of movement modelare described in detail, and the efficiency and effects are verified by experiments in the visualsimulation system of missile.更多还原