【摘要】：針對掃描線與岸線求交算法生成的航海雷達圖像物標間遮擋關(guān)系不明確、陸地內(nèi)部回波缺失問題,提出利用著色器程序計算雷達探測距離,通過繪制視景圖形并提取幀緩存數(shù)據(jù)來生成仿真雷達圖像。該方法利用紋理映射實現(xiàn)快速坐標轉(zhuǎn)換和消除仿真圖像的死點現(xiàn)象。對仿真圖像中回波不連續(xù)問題進行了分析并提出了緩解措施。視景圖形繪制方法生成雷達圖像避開了求交計算的瓶頸,仿真結(jié)果表明,生成的雷達圖像質(zhì)量較現(xiàn)有模擬器有顯著提高。
[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.
【作者單位】： 大連海事大學(xué)航海動態(tài)仿真與控制交通行業(yè)重點實驗室;集美大學(xué)航海學(xué)院;
【基金】：國家高技術(shù)研究發(fā)展計劃項目(2015AA016404) 國家自然科學(xué)基金項目(51579114)
【分類號】：TN957.52

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