机场毁伤效果仿真技术

提出了一种从微软虚拟地球遥感影像数据库获得毁伤前机场瓦片图像组的方法，并基于四叉树的数据结构分析获得了其在远程数据库的存储方式，以此为基础拼接得到高分辨率的毁伤前机场图像数据。在此基础上，分析了图像的投影方式，重点研究了基于WEB墨卡托投影的经纬度配准方法，从而实现了从地理经纬度坐标到机场局部图像像素坐标的转换。并利用经典的Bernard混凝土侵彻公式对动能物侵彻机场跑道混凝土的深度和成坑可见直径进行了仿真。最后，采用二维图像技术设计了仿真软件，将仿真得到的成坑数据和侵彻位置绘制在毁伤前机场图像中，得到了可视化的毁伤后机场仿真影像。

Simulation technology of damage effects of airport

A method of getting tile image groups of airport before damage from "Microsoft Virtual Earth" image database was proposed.The storage structure of these images in remote database was analyzed 半 by using quadtree data structure.High-resolution image of airport before damage was developed by organizing these images together.After this,image projection method,especially the method of longitude and latitude registration was studied under WEB mercator projection.So geographical coordinate can be projected to local image pixel coordinate.The depth and visible diameter of craters caused by kinetic projectile on concrete runway were simulated with classical "Bernard′s Formulas on Depth of Projectile Penetration in Rock".Finally the simulation software was designed with 2D image generated technology.With position and other property of the crater,the virtual damaged airport image was derived by superposing the simulated crater images on the image of airport before damage.