The first part of this lecture provides an overview of radar cross section (RCS) and
techniques for predicting a target's RCS through both measurement and
theoretical calculation. It begins with definitions of RCS and factors
affecting it. Examples of typical RCS values for different targets are
given. Physical scattering mechanisms and contributors to a target's RCS
are described. Both full-scale and scale model target measurement
techniques are outlined. Theoretical prediction methods including
geometrical optics, physical optics, and diffraction theories are
introduced. Scaling laws for applying results from scale models to
full-scale targets are also covered.
The second part of the lecture discusses various methods for calculating radar cross section (RCS), including the finite difference time domain method, method of moments, geometrical optics, physical optics, geometrical theory of diffraction, and physical theory of diffraction. It provides overviews and comparisons of each method, explaining their approaches and areas of applicability. The document also includes examples of RCS calculations and summaries of key points about specific methods.
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