The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2010
Filed:
Feb. 12, 2010
Scott D. Connell, Ann Arbor, MI (US);
Edward F. Gabl, Saline, MI (US);
Mark A. Ricoy, Ann Arbor, MI (US);
Elizabeth T. Batteh, Ann Arbor, MI (US);
Ron S. Goodman, Novi, MI (US);
Scott D. Connell, Ann Arbor, MI (US);
Edward F. Gabl, Saline, MI (US);
Mark A. Ricoy, Ann Arbor, MI (US);
Elizabeth T. Batteh, Ann Arbor, MI (US);
Ron S. Goodman, Novi, MI (US);
General Dynamics Advanced Information Systems, Inc., Fairfax, VA (US);
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.