【摘要】：針對(duì)掃描線(xiàn)與岸線(xiàn)求交算法生成的航海雷達(dá)圖像物標(biāo)間遮擋關(guān)系不明確、陸地內(nèi)部回波缺失問(wèn)題,提出利用著色器程序計(jì)算雷達(dá)探測(cè)距離,通過(guò)繪制視景圖形并提取幀緩存數(shù)據(jù)來(lái)生成仿真雷達(dá)圖像。該方法利用紋理映射實(shí)現(xiàn)快速坐標(biāo)轉(zhuǎn)換和消除仿真圖像的死點(diǎn)現(xiàn)象。對(duì)仿真圖像中回波不連續(xù)問(wèn)題進(jìn)行了分析并提出了緩解措施。視景圖形繪制方法生成雷達(dá)圖像避開(kāi)了求交計(jì)算的瓶頸,仿真結(jié)果表明,生成的雷達(dá)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(dòng)態(tài)仿真與控制交通行業(yè)重點(diǎn)實(shí)驗(yàn)室;集美大學(xué)航海學(xué)院;
【基金】：國(guó)家高技術(shù)研究發(fā)展計(jì)劃項(xiàng)目(2015AA016404) 國(guó)家自然科學(xué)基金項(xiàng)目(51579114)
【分類(lèi)號(hào)】：TN957.52

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