基于NURBS建模技术的物理光学方法的遮挡判断

• Original Articles • Previous Articles Next Articles

Study of the shadowing technique in the NURBS-PO method

CHEN Ming;ZHANG Yu;WANG Nan;LIANG Chang-hong

Key Lab. of Antennas and Microwave Technology, Xidian Univ., Xi′an 710071， China

Received:1900-01-01 Revised:1900-01-01 Online:2006-06-20 Published:2006-06-20

Abstract

Abstract: The NURBS PO applies the PO method on the NURBS surface to compute the field and radar cross section (RCS).
Shadowing is one of the key problems in the physical optics method. In this paper, an effective algorithm is present to solve
the shadowing problem in the NURBS-PO method. Numerical examples show the validity of this algorithm. This algorithm can also
be applied to the PO method which uses triangle patch modeling to accelerate the computing speed.

Key words: shadowing, NURBS, physical optics, stationary phased method

CLC Number:

TN011

CHEN Ming;ZHANG Yu;WANG Nan;LIANG Chang-hong.

Study of the shadowing technique in the NURBS-PO method

[J].J4, 2006, 33(3): 430-432.

[1]	ZHAO Hua;GUO Lixin. Electromagnetic scattering characteristic of Gaussian rough coated objects in terahertz [J]. Journal of Xidian University, 2018, 45(1): 23-29.
[2]	Lü Zhengliang;GONG Shuxi;ZHANG Pengfei;CHEN Wenfeng;ZHAO Bo. Wide-band analysis using the modified IE-FFT and physical optical hybrid method [J]. J4, 2014, 41(5): 74-78.
[3]	LI Jie;GUO Lixin;HE Qiong;WU Zhensen;WANG Xiaobing. Accurate geometry modeling in analysis of composite EM scattering [J]. J4, 2012, 39(6): 92-98.
[4]	DANG Xiaojie;YUAN Haobo;WANG Nan;LIANG Changhong. New method for removing the hidden face in the MOM-PO hybrid method [J]. J4, 2012, 39(1): 38-41.
[5]	QIN Santuan;GONG Shuxi. Fast hybrid algorithm for the analysis of transient scattering by 2-D conducting cylinders [J]. J4, 2011, 38(5): 135-141.
[6]	HUANG Kai;HE Zhili;ZHANG Hongwei;LIANG Changhong;SU Hang. Analysis of antenna around electrically large NURBS platform with improved MoM-PO method [J]. J4, 2011, 38(4): 124-128.
[7]	GUAN Ying;GONG Shu-xi;XU Yun-xue;ZHANG Shuai;JIANG Wen. Improved PO technique for the RCS computation of targets modeled with trimmed NURBS surfaces [J]. J4, 2010, 37(5): 893-897.
[8]	HUANG Kai;HE Zhi-li;LIANG Chang-hong. Improved NURBS-PO method for analyzing the disturbed pattern of an antenna around an electrically large platform [J]. J4, 2010, 37(5): 879-883.
[9]	YUAN Hao-bo;WANG Nan;LIANG Chang-hong. Efficient method of moments for the computation of RCS [J]. J4, 2009, 36(4): 629-674.
[10]	ZHANG Peng-fei;GONG Shu-xi;XU Yun-xue;LIU Ying. Computation and control of RCS for large open-ended cavities [J]. J4, 2009, 36(1): 111-115.
[11]	YANG Ling-xia;GE De-biao;JIANG Yan-nan. An application of TDPO and its Parallel algorithm to the analysis of electromagnetic scattering [J]. J4, 2007, 34(7): 128-131.
[12]	ZOU Yan-lin;LIU Qi-zhong;GUO Jing-li. Analysis of antennas with the body of revolution radome using the hybrid MoM-PO method [J]. J4, 2007, 34(4): 566-569.
[13]	WANG Li-na;ZHAI Hui-qing;LIANG Chang-hong. The study of an efficient sub-region iterative current-based method [J]. J4, 2005, 32(5): 706-710.
[14]	GUO Li-xin;CHEN Jian-jun;WEI Guo-hui;WU Chun-yu. Study of electromagnetic scattering from the rough surface using the small slope approximation [J]. J4, 2005, 32(3): 408-413.

Study of the shadowing technique in the NURBS-PO method

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 14

Metrics

Comments

Recommended 2