视景图形绘制方法生成航海雷达图像关键技术
发布时间：2019-01-22 18:15
【摘要】：针对扫描线与岸线求交算法生成的航海雷达图像物标间遮挡关系不明确、陆地内部回波缺失问题,提出利用着色器程序计算雷达探测距离,通过绘制视景图形并提取帧缓存数据来生成仿真雷达图像。该方法利用纹理映射实现快速坐标转换和消除仿真图像的死点现象。对仿真图像中回波不连续问题进行了分析并提出了缓解措施。视景图形绘制方法生成雷达图像避开了求交计算的瓶颈,仿真结果表明,生成的雷达图像质量较现有模拟器有显著提高。
[Abstract]:Aiming at the problem of unclear occlusion relationship between the objects of navigation radar images generated by the intersection algorithm of scanning line and shoreline, and the lack of echo in the land interior, a method is proposed to calculate radar detection distance by using the shader program. The simulation radar image is generated by drawing the scene graph and extracting the frame cache data. This method uses texture mapping to realize fast coordinate transformation and eliminate dead point phenomenon of simulation image. The problem of echo discontinuity in simulated images is analyzed and the mitigation measures are proposed. The method of scene rendering avoids the bottleneck of intersection calculation. The simulation results show that the quality of the generated radar image is significantly higher than that of the existing simulator.
【作者单位】： 大连海事大学航海动态仿真与控制交通行业重点实验室;集美大学航海学院;
【基金】：国家高技术研究发展计划项目(2015AA016404) 国家自然科学基金项目(51579114)
【分类号】：TN957.52
本文编号：2413443
[Abstract]:Aiming at the problem of unclear occlusion relationship between the objects of navigation radar images generated by the intersection algorithm of scanning line and shoreline, and the lack of echo in the land interior, a method is proposed to calculate radar detection distance by using the shader program. The simulation radar image is generated by drawing the scene graph and extracting the frame cache data. This method uses texture mapping to realize fast coordinate transformation and eliminate dead point phenomenon of simulation image. The problem of echo discontinuity in simulated images is analyzed and the mitigation measures are proposed. The method of scene rendering avoids the bottleneck of intersection calculation. The simulation results show that the quality of the generated radar image is significantly higher than that of the existing simulator.
【作者单位】： 大连海事大学航海动态仿真与控制交通行业重点实验室;集美大学航海学院;
【基金】：国家高技术研究发展计划项目(2015AA016404) 国家自然科学基金项目(51579114)
【分类号】：TN957.52
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1 邓柳;;基于点阵液晶屏的图形绘制方法研究[J];湖北成人教育学院学报;2009年03期
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