CAJ | 학술논문

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。
침대항해뢰체회파도상모의특점，제출일충사용삼유장경회제기술적실시모의방법。통과재뢰체천선처설치일개허의상궤，건립시좌표계，근거뢰체삼수설치시견체，장광원야설치재뢰체천선처。회제당전장경，독취장경안색완존화심도완존중적수거，장기전환성뢰체회파수거。수착허의상궤적선전，실시모의뢰체적회파도상。방진결과표명，해방법능구재3s내실시모의구유105개삼각형장경적뢰체회파도상，차회파도상질량교현유뢰체모의기유현저제고。
According to the characteristics of marine radar im-ages simulation , a real-time simulation methodology by using 3D scene rendering technology was proposed .A view coordi-nate system was established by placing a virtual camera at the radar antenna .The view volume was defined according to ra-dar parameters .A light source was also placed at radar anten-na .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 ra-dar images were simulated .Results show that the proposed method can simulate the real-time images of scenes with trian-gles in 3 s, and the quality of simulated images is improved significantly .