一体化雷达散射截面计算方法研究

针对传统RCS分析中，目标建模与RCS计算的分立状态，提出了一种一体化计算方法。将RCS图形算法集成到CAD造型软件中，为目标外形设计和RCS分析提供了一个完整的解决方案。计算实例说明，这种方法不但能够满足精度要求，而且可以极大地简化前处理工作，提高目标设计的总体效率。

Integrative RCS (Radar Cross Section) Calculation as a Much More Efficient Method of RCS Calculation

Traditional RCS calculation methods treat target shape design or modeling and its RCS analysis separately. At the beginning of this paper, we discuss in considerable detail the disadvantages of traditional approach, particularly its very low efficiency. Integrative RCS calculation, proposed by us, can be much more efficient. Integrative RCS calculation integrates GRECO (graphical electromagnetic computing) into CAD (computer aided design) modeling software through OpenGL (Open Graphical Library) to provide an integral environment for both target shape design and RCS analysis. Section 1 briefly summarizes relevant contents in Refs.2 and 3 that are needed in our integrative RCS calculation method. Section 2 discusses in much detail the integration of GRECO into 3D (dimensional) CAD modeling software. Essentially section 2 includes the following four topics: (1) the selection of UG (Unigraphics) 3D CAD modeling software as development platform; (2) the reason for selecting the internal program mode of UG/Open; (3) the discussion of how, in the integral environment, 3D CAD model can be directly utilized by RCS code without any further identification or translation; (4) the conclusion that RCS analysis and target modeling can be performed simultaneously. Section 3 gives two numerical examples; discussion of the numerical results, as summarized in Figs.2, 3 and 4, shows preliminarily that our integrative RCS calculation method is indeed feasible, accurate and efficient.