弹道导弹飞行弹道的三维仿真

该文介绍运用外部建模工具建立地球和弹道导弹的几何模型，生成相应的贴图坐标，利用OpenGL图形接口模块完成三维的地球运动体仿真，并根据贴图坐标建立地球空间直角坐标系，在此基础上利用弹道导弹飞行弹道、火力圈、防御区域等的计算数据，通过建立的发射坐标系、地心直角坐标系和模型坐标系转换关系，将数据以三维立体形式显示。该方法突破了以往导弹（卫星）轨迹以地图平面投影形式进行二维显示的局限性，具有很强的直观性和交互性。

Three-dimensional Simulation of Flight Trajectory of Ballistic Missile

External modeling tool is used to construct geometric model of the earth and ballistic missile, and corresponding texture map coordinates are generated in this paper. Moreover, graph interface module of OpenGL is also used to realize three-dimensional simulation of the earth moving object, and the space rectangular coordinate system of the earth is established according to the texture coordinates. On this basis, by means of the transform relation between the constructed launch coordinate system, the geocentric rectangular coordinate system and the model coordinate system, the three-dimensional display of the flight trajectory, firepower circle, defense area of ballistic missile are realized. With visual, real-time and interactive property as its main advantages, this method breaks the limitation of the traditional two-dimensional display method by which the trajectory of missile or satellite is displayed in the form of projection on map plane.