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:
Jul. 07, 2020
Filed:
May. 14, 2018
Applicant:
Raytheon Company, Waltham, MA (US);
Inventors:
Ian S. Robinson, Waltham, MA (US);
Bradley A. Flanders, Waltham, MA (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/48 (2006.01); G01S 3/06 (2006.01); G01S 3/04 (2006.01);
U.S. Cl.
CPC ...
G01S 3/48 (2013.01); G01S 3/043 (2013.01); G01S 3/06 (2013.01);
Abstract
A direction finding interferometer shares receivers among antennas and aperiodically switches between those antennas. The phase differences for a subset of the antenna pairs are measured for each pulse and the results are combined with the results from subsequent pulses to resolve ambiguities. An angle of arrival common to two subsets of angles of arrival is the unambiguous angle of arrival.