基于OpenGL的卫星覆盖可视化仿真  

Visual Simulation of the Satellite Cover by Using OpenGL

作　　者：王忠[1] 李钢[2] 

机构地区：[1]福州市73630部队 [2]国防科技大学计算机学院

出　　处：《现代电子技术》2006年第14期49-52,共4页Modern Electronics Technique

摘　　要：卫星覆盖是卫星运动在地球表面的投影。首先介绍了OpenGL图形库的体系结构和绘图原理;然后利用两行轨道根数(TLE)文件,采用SGP4/SDP4模型计算卫星星下点的地理经度、地理纬度、卫星高度,并从理论上计算卫星覆盖;最后使用等距墨卡托投影,将卫星覆盖绘制在地球平面图上。详细说明了运用OpenGL图形库绘制卫星覆盖的具体步骤和关键技术,最后给出了多种不同形状的卫星覆盖效果图。The cover is the moving satellite＇s projection to the surface of the earth. The article introduces architecture and principle of the OpenGL at first,then introduces SGP4/SDP4 model to calculate the geography longitude,latitude and the satellite altitude with the input file of TLE. Then the satellite cover is calculated. The satellite cover are drawn on the ichnography of the earth with the projection of Mercator. Finally the article explains the detailed steps and the key technique on how to draw the track of sub-satellite points and shows some different shape tracks of sub-satellite points.

关 键 词：可视化 开放性图形库 覆盖 等距墨卡托投影 

分 类 号：TN927[电子电信—通信与信息系统]