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:
Jun. 24, 2008
Filed:
Oct. 05, 2005
Armin W. Doerry, Albuquerque, NM (US);
Freddie E. Heard, Albuquerque, NM (US);
J. Thomas Cordaro, Albuquerque, NM (US);
Armin W. Doerry, Albuquerque, NM (US);
Freddie E. Heard, Albuquerque, NM (US);
J. Thomas Cordaro, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.