DIFFRACTION OF PROGRESSING WAVES BY EDGES
MITRE CORP BEDFORD MA
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For high frequency monochromatic waves the geometrical theory of diffraction can be used for predicting radar scattering. For typical targets the strongest returns, due to speculars, occur only at special aspect angles. At most aspect angles the dominant returns are usually due to diffraction by the edges of the target. The proposed use of short pulse radars requires the consideration of scattering by non-monochromatic signals. The progressing wave formalism is a generalization of the geometrical theory of diffraction suitable for treating pulses for which the high frequencies predominate. This paper extends the earlier work on specular scattering of progressing waves to include scattering by edges. For a moving target, partial results are obtained.
- Active and Passive Radar Detection and Equipment