Abstract
A digital method of calculating the radar backscattering diagrams is presented. The method uses a digital model of an arbitrary scattering object in the 3D graphics package "OpenGL" and calculates the backscattered signal in the physical optics approximation. The backscattering diagram is constructed by means of rotating the object model around the radar-target line.
Highlights
The task, which represents a constant interest in radiolocation, is constructing a scattering diagram of an object illuminated by a radar
Digital electromagnetics simulation allows accurate modeling of physical systems in combination with an accurate numerical solution of either differential or integral formulations of Maxwell’s equations. This computational electromagnetics can be applied to many practical engineering problems, for example, antenna design, calculation, backscattering diagrams, targets recognition, and so forth
The graphic of the diagram is being drawn moving with a discrete of angle α equal to delα = 0.5◦ (Figures 2, 3, 4, 5, 6, and 7)
Summary
The task, which represents a constant interest in radiolocation, is constructing a scattering diagram of an object illuminated by a radar. Digital electromagnetics simulation allows accurate modeling of physical systems in combination with an accurate numerical solution of either differential or integral formulations of Maxwell’s equations This computational electromagnetics can be applied to many practical engineering problems, for example, antenna design, calculation, backscattering diagrams, targets recognition, and so forth. The most reliable approach has always been a method of natural modeling It means that the model of object, constructed of real metallic or other materials, is irradiated by a real radar transmitter, and a real radar receiver gets the scattered signals. This method simulates a scalar electromagnetic radiation of the object, but this task may be modeled in the case of the polarized irradiation
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