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:
Sep. 06, 2011
Filed:
Aug. 06, 2009
Daniel Mccarthy, Manlius, NY (US);
Dean Paschen, Lafayette, CO (US);
Lary Eichel, Louisville, CO (US);
Frank Pratt, Tipp City, OH (US);
Daniel McCarthy, Manlius, NY (US);
Dean Paschen, Lafayette, CO (US);
Lary Eichel, Louisville, CO (US);
Frank Pratt, Tipp City, OH (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
Method and apparatus for minimizing antenna backside signal response and ambiguity in low frequency applications, particularly low frequency synthetic aperture radar (SAR). Various time delay elements are selectably switched into the signal path so as to cause a null to be placed in the antenna response pattern in the direction of undesired radar returns. The means for selectably switching may be dithered so as to introduce modulation onto the undesired radar return to aid in the discrimination and removal of the undesired radar return from the SAR image during post processing.