ballet软件开发中英文对照外文翻译文献

,

典型的电大型复杂腔

,

在计算电——磁学仍然是一个挑战性的任

务 。

图

4

是一个矩形入口的模型

[7]

和其

RCS

模拟 软件。

需要

16.58

分钟

分钟得到的结果

装具

(b)

和

(c)

。找到优秀的 协议与参考文献

[7]

中的结果。所有这些结果验证新的射线追 踪

方法的准确性对于复杂的蛀牙在我们开发的软件。

(a)

个矩形入口的模型

软件开发中英文对照外文翻译文献

图

4.

矩形进气道的

< br>RCS,

平行极化

IV.

结论

一个新颖的射线追踪方法和相应的

SBR

相对任意腔散射模拟软 件开发基于

UG

的二次开

发。软件的仿 真程序进行了探讨。一些结果

,

显示良好的准确性和效率高的散 射建模电大型

复杂的蛀牙。

参考文献

[1]

郝凌、周

Ri-chee Shung-wu

李。射击和弹跳射线

:RCS

的计算任意形状的空腔。

IEEE

反式

天线

progat,1989

年

,37(2):194

–

205

[2]

角色h·帕沙克

,

罗伯特·j ·霍尔德。

模态、

射线和梁的技术分析开放式波导腔的电磁散< /p>

射。

IEEE

反式天线

< br>progat,1989

年

,37(5):635 - 647

[3]

嬴政阮。电磁辐射的基本理论。成都电讯工程学 院出版社

,1984

年

[4]

傅雅宁。计算机图形学。国防工业出版社

,2 005

[5]

李建州

,

徐家栋

,

等。

基于国标库的 设计评估软件。

中国无线电科学学报

,2005,20(2): 222

- 225

[6]

李建周< /p>

,

徐家栋等

.

综 合

RCS(

雷达截面

)

计算一个更有效的

RCS

计算方法。西北工业大学学< /p>

报

,2003,21(4):449 - 452

[7]

郝凌

,Shung-wu

李

Ri-chee

周。

高高频

RCS

开放腔的矩形和圆形的横截面。

IEEE

反式天

线

p rogat,1989

年

,37(5):648

–

654

软件开发中英文对照外文翻译文献

原文：

Development of RCS simulation software for

electrically large complex cavities based on the

secondary development of UG

LI Jianzhou JIANG Yingfu XU Jiadong School of Electronics and Information, Northwestern

Polytechnical University,

Xi’an Shanxi 710129, China

Abstrac ---t-A shooting and bouncing ray (SBR) based software is developed by the secondary

development of Unigraphics (UG). The core algorithm of ray tracing is based on the optimized

Non-uniform Rational B-splines(NURBS) curve-surface intersection algorithm built in UG, which

results in very high accuracy of ray path tracing without meshing thus keeping the accuracy of

theoriginal cavity model. It is also efficient even if work witha complex cavities because of

avoiding of shielding

process. Both geometry modeling of cavity and its scattering simulation are

into a uniform

platform, which forms an easy-using integrative and universal environment for electromagnetic

modeling of complex cavities.

。

In this paper, the developed software for complex cavity scattering

modeling has been introduced with some numerical results todemonstrate the accuracy and

efficiency

Key words-electrically large complex cavit; Radar Cross Section; secondary development of UG;

shooting and

bouncing rays (SBR); ray-tracing

I. INTRODUCTION

Radar cross section (RCS) analysis of electrically large complex cavities such as inlet or

outlet, dihedral or trihedral corner reflector etc.,

。

is one of the mostimportant topics in

computational electromagnetics. Forelectrically large complex cavity structures, only high

frequency based

method such as shooting and bouncing ray (SBR)[1][2][3] is suitable.

Traditionally, there arethree steps to employ SBR Firstly, to model the cavity in CAD software

and mesh surfaces of its interior walls,then exports information of the mesh results; secondly

finding the reflection points of the rays on the surfaces by ray-surface

intersection and shielding

calculation;finally calculates RCS from the outgoing rays from the gh such mesh

based

ray tracing can be used in arbitrarily shaped cavities theoretically,it has the disadvantage

of inaccurate paths founding in complex cavities which lead to a poor RCS calculation accuracy

。

.

For electrically large complex cavities, the

efficiency of ray tracing is very low due to the

separation of cavity modeling and RCS calculation witha complicated simulation procedure. To

address theseproblems, an integrated simulation software isdeveloped based on secondary

development of Unigraphics (UG), , a powerful CAD software, to model electrically large