航海雷达模拟器中天线方向图的仿真  

Antenna Pattern Simulation in Marine Radar Simulator

作　　者：曹士连[1,2] 金一丞[1] 尹勇[1] 兰培真[2] CAO Shilian;JIN Yicheng;YIN Yong;LAN Peizhen(Key Laboratory of Marine Simulation&Control for Ministry of Transport,Dalian Maritime University,Dalian 116026,China;Navigation Collage,Jimei University,Xiamen 361021,China)

机构地区：[1]大连海事大学航海动态仿真与控制交通运输部重点实验室,辽宁大连116026 [2]集美大学航海学院,福建厦门361021

出　　处：《中国航海》2018年第1期7-12,共6页Navigation of China

基　　金：国家高技术研究发展计划(863计划)课题(2015AA016404);国家自然科学基金(51579114)

摘　　要：针对目前航海模拟器中的仿真雷达图像没有考虑天线方向图的影响,图像真实感有待进一步提高的状况,在利用视景图形绘制方法生成航海雷达图像的基础上,分析天线方向图对生成雷达回波的影响。通过对存储有径向扫描线的纹理进行像素操作来仿真雷达天线方向图,实现天线方向图引起的回波横向扩展和径向扩展,并生成旁瓣假回波。仿真结果表明,考虑天线方向图的仿真雷达图像更加饱满,更加接近于真实雷达图像,真实感得到进一步提升,且仿真速度并未受到明显影响,能满足航海训练要求。The antenna pattern is not normally considered when simulating radar images in marine radar simulators;therefore,the reality is not absolutely satisfactory.The influence of antenna pattern on radar echo scene rendering is investigated.The effect of antenna pattern is simulated through manipulating pixels to rendering the texture and the angular elongation and radial elongation.The side lobe echo is also simulated on the screen.Visual examination proves that the image is notably plumper and closer to real radar image.The computing time is not obviously affected,neither the simulation speed.

关 键 词：雷达模拟器 天线方向图 回波扩展 旁瓣回波 

分 类 号：U666.158[交通运输工程—船舶及航道工程] U675.74[交通运输工程—船舶与海洋工程]