An Efficient Ray Tracing Algorithm for Multiple Straight Wedge Diffraction

被引：20

作者：

Carluccio, Giorgio ^{[1
]}

Albani, Matteo ^{[1
]}

机构：

[1] Univ Siena, Dept Informat Engn, I-53100 Siena, Italy

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2008年 / 56卷 / 11期

关键词：

Electromagnetic propagation; multiple diffraction; ray tracing; uniform theory of diffraction (UTD);

D O I：

10.1109/TAP.2008.2005540

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：

We present an efficient algorithm for the tracing of multiply edge diffracted rays. The algorithm assumes a given sequence of infinite edges and complete visibility among them. The ray tracing problem is formulated as the minimization of the ray total path length. Since such a cost function is strictly convex, except for coplanar edges in the plane-wave far-field regime, then the problem admits a unique global minimum and allows the use of a modified Newton search algorithm, which exhibits a very high converging rate. We also propose a convenient starting point to effectively initialize the minimization algorithm. The proposed algorithm is tested by some numerical examples that show its efficiency and effectiveness.

引用

页码：3534 / 3542

页数：9

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