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NURBS曲面在电大尺寸RCS计算应用中的改进

Improvement on Application of NURBS Surface in Electrically Large RCS Computation
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摘要 NURBS曲面建模技术的应用是电磁散射计算中的重要研究内容。基于NURBS控制网格的剖分和规划处理,简并相似的计算,提出一种将基于NURBS建模的曲面转化为分段Bez-ier面片的高效算法,简化了该过程的复杂度和计算量。结果表明该算法保持了良好的通用性和准确性,且曲面次数越高,控制顶点越多,在计算量上的优势越明显。 Application of NURBS surface modeling technology is important in computation of electromagnetism scattering. A high efficient algorithm by converting surface based on NURBS modeling to segmental Bezier patches is proposed according to sub-section and programming processing based on NURBS control network as well as simple and similar computation, complexity and computation amount of electromagnetism scattering computation process are both decreased. Results show the algorithm has good universality and high accuracy; the higher degree of surface and the more control vertexes, advantage in computation amount will be more significant.
作者 武文 龚书喜
出处 《火控雷达技术》 2008年第3期29-32,共4页 Fire Control Radar Technology
关键词 电磁散射计算 NURBS曲面 BEZIER曲面 electromagnetic scattering computation NURBS surface Bezier surface
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参考文献5

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