Study on Curved Wedge Diffraction in NURBS‐UTD Method
Study on Curved Wedge Diffraction in NURBS‐UTD Method
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DOI：
10.1002/mop.27868
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发表时间：
2013-10
影响因子：
1.5
通讯作者：
Nan Wang;X. Dang;Haobo Yuan;C. Liang
中科院分区：
文献类型：
--
作者：
Nan Wang;X. Dang;Haobo Yuan;C. Liang
研究了非均匀有理B-样条（NURBS）-均匀几何绕射理论方法中的曲楔绕射问题。曲线楔体被表示为NURBS曲线，同时它也被视为两个NURBS曲面的交点。通过数值方法对基本问题进行处理，利用NURBS的数学定义和微分几何的基本知识，得到射线场计算中所需的参数。计算结果表明，在考虑楔形衍射光场对总光场的贡献后，计算精度略有提高。数值结果表明了该方法的有效性和改进性。© 2013 Wiley Periodicals，Inc.微波光学技术快报55：2317-2321，2013
The curved wedge diffraction in nonuniform rational b‐spline (NURBS)‐uniform geometrical theory of diffraction method is studied in this article. The curved wedge is denoted as a NURBS curve while it is also treated as the intersection of two NURBS surfaces. Basic aspects are managed through numerical measures, and parameters used in the calculation of ray field are achieved by using the mathematic definition of NURBS and basic knowledge of differential geometry. Good results are achieved in the examples given and with the contribution of the wedge diffracted ray field to the total ray field, the computational accuracy can be slightly improved. Numerical results show the validation and the improvement. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2317–2321, 2013