Volume 7 Number 6 (Jun. 2012)
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JSW 2012 Vol.7(6): 1351-1357 ISSN: 1796-217X
doi: 10.4304/jsw.7.6.1351-1357

Algorithm of diffraction for standing tree based on the uniform geometrical theory of diffraction

Yun-Jie Xu1, Wen-Bin Li2, and Shu-Dong Xiu1
1School of technology, Zhejiang Agricultural & Forestry University, Lin’an, China
2School of technology, Beijing Forestry University, Bei jing, China
3School of technology, Zhejiang Agricultural & Forestry University, Lin’an, China

Abstract—The diffraction fields and the shadow of standing tree diffraction are solved by using polygons to approximately take the place and approximation as approximate substitutes of for the circle. The algorithm model of ray path tracing is computed by tracing the ray path on standing tree. Considering electromagnetic wave propagation, which a physical model of diffraction for a forest is constructed. The mathematical model of diffraction is presented using the uniform geometrical theory of diffraction(UTD). Moreover, the expression for diffraction loss is derived. The results were then applied to the fir. Simulation and analysis show the validity of the proposed model.

Index Terms—UTD, standing tree, algorithm of diffraction

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Cite: Yun-Jie Xu, Wen-Bin Li, and Shu-Dong Xiu, "Algorithm of diffraction for standing tree based on the uniform geometrical theory of diffraction," Journal of Software vol. 7, no. 6, pp. 1351-1357, 2012.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly 
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, CNKIGoogle Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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