Title :
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
fDate :
4/1/1993 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation Magazine, IEEE
