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Proceedings Paper

Refinement of range-Doppler imagery by feedback control
Author(s): Benjamin C. Flores; Alberto Ugarte
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Paper Abstract

This paper describes extended work on a comprehensive rotational-motion estimation and compensation technique to improve the quality of range-Doppler imagery. The approach assumes that the target signature is a collection of samples in the frequency space aperture plane. Motion compensation is performed via a polar reformatting scheme that requires knowledge of target kinematics, while motion estimation is accomplished by monitoring an entropy-like function in terms of kinematic parameter estimates. When properly selected, the entropy-like function becomes an accurate measure of image sharpness, and can thus be used to control a down-hill simplex search which yields an optimum set of rotational-motion parameter estimates. Ultimately, this set is needed to produce an optimally focused target image.

Paper Details

Date Published: 15 October 1993
PDF: 11 pages
Proc. SPIE 1960, Automatic Object Recognition III, (15 October 1993); doi: 10.1117/12.160624
Show Author Affiliations
Benjamin C. Flores, Univ. of Texas/El Paso (United States)
Alberto Ugarte, Univ. of Texas/El Paso (United States)

Published in SPIE Proceedings Vol. 1960:
Automatic Object Recognition III
Firooz A. Sadjadi, Editor(s)

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