Radar Target Identification.
Final technical rept. 1 Mar 77-30 Sep 78,
OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB
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This report presents a review of the radar target identification problem with primary emphasis on practical solutions as opposed to abstract inverse scattering formalisms. A time domain viewpoint is stressed throughout because of its compactness, ease of visualization and diagnostic potential and because it is a unifying tool for various electromagnetic approximations. A small finite set of excitation invariant target descriptors, the coefficients of a linear, homogeneous difference equation, or equivalently the complex natural resonances, are justified as a discrimination tool. A prediction-correlation method for using these coefficients in identification is demonstrated. It is shown that substructure features of the targets, in this caes vertical and horizontal stabilizers of aircraft, possibly can be used as a discrimination feature and that the required interrogating radar signal spectrum for this case is significantly higher than that required for previous discrimination schemes using excitation invariant parameters. In this specific case, however, the target parameters do not have a simple physical interpretation. Author
- Active and Passive Radar Detection and Equipment