Dissertation
Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Electronic warfare ( jamming and anti - jamming ) > Radar electronic countermeasures

Calculation on Radar Cross Section of Electrically Large Targets Modeled with NURBS

Author YangZuo
Tutor GongShuXi
School Xi'an University of Electronic Science and Technology
Course Electromagnetic Field and Microwave Technology
Keywords Radar Cross Section Non-uniform rational B-spline Physical Optics Physical theory of diffraction
CLC TN974
Type Master's thesis
Year 2008
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Accurate estimate of the radar cross section (RCS) for target recognition database and stealth anti- stealth technology research is of great significance . This paper studies the calculation method of electrically large the ideal conductive target radar cross section . Target model using parametric surfaces based on non - uniform rational B- spline (NURBS) technology established, combined with physical optics theory ( PO ) , the physical theory of diffraction (PTD) high-frequency method to calculate the target 's radar cross-section , in which the physical optics method used in the calculation of the surface contribution to physical theory of diffraction is used to calculate the edge diffraction contribution . Gordon method to deal with the physical optics integral . It also discusses the parametric surface model subdivision , ideas and methods of the shadowing and ray tracing , given a mathematical description . In Fortran program based on the above-mentioned method , and calculated to verify the effectiveness of the method by an example .

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