使用三维场景绘制技术模拟雷达图像  

Radar images simulation by using 3D scene rendering technology

作　　者：王进成[1] 金一丞[1] 曹士连[1] 

机构地区：[1]大连海事大学航海动态仿真与控制交通部重点实验室,辽宁大连116026

出　　处：《大连海事大学学报》2014年第4期79-84,共6页Journal of Dalian Maritime University

基　　金：国家重点基础研究发展计划(973)子项目(2009CB320800)

摘　　要：针对航海雷达回波图像模拟特点,提出一种使用三维场景绘制技术的实时模拟方法.通过在雷达天线处设置一个虚拟相机,建立视坐标系,根据雷达参数设置视见体,将光源也设置在雷达天线处.绘制当前场景,读取场景颜色缓存和深度缓存中的数据,将其转换成雷达回波数据.随着虚拟相机的旋转,实时模拟雷达的回波图像.仿真结果表明,该方法能够在3s内实时模拟具有105个三角形场景的雷达回波图像,且回波图像质量较现有雷达模拟器有显著提高.According to the characteristics of marine radar images simulation,a real-time simulation methodology by using3 D scene rendering technology was proposed. A view coordinate system was established by placing a virtual camera at the radar antenna. The view volume was defined according to radar parameters. A light source was also placed at radar antenna. The current scenes were drew,and the data in color buffer and depth buffer were read after rendering and then converted to radar echos. As the rotation of virtual camera,real-time radar images were simulated. Results show that the proposed method can simulate the real-time images of scenes with triangles in 3 s,and the quality of simulated images is improved significantly.

关 键 词：航海雷达 雷达模拟器 三维场景绘制 深度缓存算法 

分 类 号：U665.22[交通运输工程—船舶及航道工程] TP391.9[交通运输工程—船舶与海洋工程]