GRECO: graphical electromagnetic computing for RCS prediction in real time

Author

Rius, Juan M. ; Ferrando, M. ; Jofre, L.

Author_Institution

Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

35

Issue

2

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

7

Lastpage

17

Abstract

An innovative approach to computing the high-frequency radar cross sections (RCSs) of complex radar targets in real time, using a 3-D graphics workstation, is presented. The target (typically, an aircraft) is modeled with the I-IDEAS solid-modeling software, using a parametric-surface approach. The high-frequency RCS is obtained through physical optics (PO), the method of equivalent currents (MEC), the physical theory of diffraction (PTD), and the impedance boundary condition (IBC) techniques. The CPU time for the RCS prediction is spent only on the electromagnetic part of the computation, while the more time-consuming geometric-model manipulations are left to the graphics hardware.<>

Keywords

computer graphic equipment; engineering workstations; image processing; radar cross-sections; 3-D graphics workstation; CPU time; GRECO; HF RCS; I-IDEAS solid-modeling software; IBC; PO; PTD; aircraft; complex radar targets; graphical electromagnetic computing; graphics hardware; high-frequency radar cross sections; impedance boundary condition; method of equivalent currents; physical optics; physical theory of diffraction; real time RCS prediction; Aircraft; Boundary conditions; Graphics; Hardware; Impedance; Physical optics; Physical theory of diffraction; Radar cross section; Solid modeling; Workstations;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.207645

Filename

207645