A New Fast Physical Optics for Smooth Surfaces by Means of a Numerical Theory of Diffraction

被引：48

作者：

Vico-Bondia, Felipe ^{[1
]}

Ferrando-Bataller, Miguel ^{[2
]}

Valero-Nogueira, Alejandro

机构：

[1] Univ Politecn Valencia, Inst Aplicac Cient & Tecn ITEAM, GRE, Dept Comunicac, E-46071 Valencia, Spain

[2] Univ Politecn Valencia, Telecommun Engn Sch, E-46071 Valencia, Spain

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 03期

关键词：

Asymptotic expansion; highly oscillatory integrals; path deformation; physical optics (PO); uniform theory of diffraction (UTD); FPO ALGORITHM; SCATTERING; INTEGRALS; FIELDS;

D O I：

10.1109/TAP.2009.2039308

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new technique to compute the physical optics (PO) integral is presented. The technique consists of a blind code that computes the different contributions (stationary phase points, end points, etc.) numerically. This technique is based on a decomposition of the surface into small triangles and a fast evaluation of each triangle by means of a deformation of the integration path in the complex plane. This algorithm permits a fast and accurate evaluation of the PO integral for smooth large surfaces. The CPU time is almost independent of frequency.

引用

页码：773 / 789

页数：17

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