15 October 1993 Bistatic scattering by a spherical dielectric target illuminated by an electromagnetic pulse
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Abstract
We study the bistatic scattering interaction of electromagnetic pulses of short duration with targets of simple shape. The targets are spheres, either a metal sphere or a dielectric hollow sphere. The waveform incident on the target is a pulse that is designed to model the waveform emitted by a particular impulse radar system, which is then used to verify our theoretical findings. When the E-field (or H-field) of the incident wave is polarized in the plane spanned by the direction of incidence and the considered scattering direction, the corresponding bistatic form-function is referred to as the E-plane (or H-plane) bistatic form-function. These are the only cases where the bistatically scattered wave is polarized parallel to the incident wave for any bistatic angle. We also examine the nature of the features that occur in a PWD, and we demonstrate that useful signature characteristics are produced by cross-terms.
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Hans C. Strifors, Steffan Abrahamson, B. Brusmark, Guillermo C. Gaunaurd, "Bistatic scattering by a spherical dielectric target illuminated by an electromagnetic pulse", Proc. SPIE 1960, Automatic Object Recognition III, (15 October 1993); doi: 10.1117/12.160583; https://doi.org/10.1117/12.160583
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