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.:

US 6919839 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 19, 2005

Filed:

Nov. 09, 2004
Applicants:

Edward R. Beadle, Melbourne, FL (US);

Paul D. Anderson, Melbourne, FL (US);

Steve Richter, Melbourne Beach, FL (US);

John F. Dishman, Melbourne, FL (US);

Emile Ganthier, Palm Bay, FL (US);

Inventors:

Edward R. Beadle, Melbourne, FL (US);

Paul D. Anderson, Melbourne, FL (US);

Steve Richter, Melbourne Beach, FL (US);

John F. Dishman, Melbourne, FL (US);

Emile Ganthier, Palm Bay, FL (US);

Assignee:

Harris Corporation, Melbourne, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S013/90 ; G01S007/40 ;
U.S. Cl.
CPC ...
Abstract

A synthetic aperture radar (SAR) compensates for ionospheric distortions based upon measurement of the group delay, particularly when operating in the VHF/UHF band. The SAR is based upon a multi-input multi-output (MIMO) technique for estimating the effective ionospheric conditions, which is referred to as the group delay approach. The group delay approach is divided into a 1-dimensional (range) approach and a 2-dimensional (range and cross-range) approach. The group delay measures the effective or observed TEC, which is used to reduce the ionospheric distortion.


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Beadle, Edward. (2005). Synthetic aperture radar (sar) compensating for ionospheric distortion based upon measurement of the group delay, and associated methods (U.S. Patent No. 6919839). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6919839

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