Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2007-08-15
2010-02-16
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S02500R, C342S02500R, C342S02500R, C342S02500R, C342S02500R, C342S02500R
Reexamination Certificate
active
07663529
ABSTRACT:
Provided are two-dimensional autofocus methods in a synthetic aperture radar (SAR) system which include: (1) two-dimensional pulse pair product algorithm including shear PGA, eigenvector phase history (“EPH”), shear PGA/EPH); (2) two-dimensional optimization algorithms including parametric one-dimensional estimate/two-dimensional correction, parametric two dimensional estimate/two-dimensional correction, unconstrained two-dimensional nonparametric and constrained two-dimensional nonparametric methods; (3) a two-dimensional geometry filter algorithm; (4) a two-dimensional prominent point processing algorithm; (5) a one-dimensional phase estimate of higher order two dimensional phase errors; and, (6) a fast SHARP parametric autofocus algorithm.
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Batteh Elizabeth T.
Connell Scott D.
Gabl Edward F.
Goodman Ron S.
Ricoy Mark A.
Bythrow Peter M
General Dynamics Advanced Information Systems Inc.
Steptoe & Johnson LLP
Tarcza Thomas H
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