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:
Oct. 12, 1993
Filed:
Jul. 23, 1992
Applicant:
Inventors:
Clifford M Gray, Owego, NY (US);
James L Johnson, Frederick, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
342 59 ; 342453 ; 342463 ; 342107 ; 342113 ;
Abstract
A tristatic radar tracking system is disclosed in which two remote transmitters and a radar receiver use a method for combining measurements of the Doppler frequency shift and angle of arrival of two signals scattered by a moving target to derive parameters of the target's trajectory through space.