Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Transmitter
Reexamination Certificate
2011-04-19
2011-04-19
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Transmitter
C342S073000, C342S118000
Reexamination Certificate
active
07928896
ABSTRACT:
A method and apparatus for target focusing and ghost image removal in synthetic aperture radar (SAR) is disclosed. Conventional SAR is not designed for imaging targets in a rich scattering environment. In this case, ghost images due to secondary reflections appear in the SAR images. We demonstrate, how, from a rough estimate of the target location obtained from a conventional SAR image and using time reversal, time reversal techniques can be applied to SAR to focus on the target with improved resolution, and reduce or remove ghost images.
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Jin Yuanwei
Moura José M. F.
Brainard Timothy A
Carnegie Mellon University
Day Jones
Tarcza Thomas H
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