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. 25, 2001
Filed:
Jun. 27, 1988
Applicant:
Inventors:
Alex Ivanov, Acton, MA (US);
Joseph E. Marquis, Londonderry, NH (US);
Robert M. Girard, Hudson, NH (US);
Wesley T. Dull, Chelmsford, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/36 ; G01S 1/300 ;
U.S. Cl.
CPC ...
G01S 7/36 ; G01S 1/300 ;
Abstract
A radar receiver adapted to detect and track a narrow band jammer is shown to include logic circuitry adapted successively to sense jamming signals from such a jammer to determine the extant frequency of the speed gate when the amplitude of the automatic gain control signal increases and to determine whether or not the received signals are coherent, and, finally, if the received signals are not coherent, to produce a tracking control signal effective to cause tracking of the narrow band jammer.