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.

Date of Patent:
Nov. 05, 2019

Filed:

Apr. 16, 2019
Applicant:

The United States of America As Represented BY the Secretary of the Navy, Newport, RI (US);

Inventor:

Donald H Steinbrecher, Brookline, MA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 21/00 (2006.01); H01Q 21/06 (2006.01); H01Q 17/00 (2006.01); G01S 3/32 (2006.01); G01R 29/08 (2006.01); G01S 3/74 (2006.01); H01Q 23/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 21/061 (2013.01); G01R 29/0892 (2013.01); G01S 3/32 (2013.01); G01S 3/74 (2013.01); H01Q 17/00 (2013.01); H01Q 23/00 (2013.01);
Abstract

A method is provided for determining instantaneous polarization of multiple electromagnetic transmissions. A segmented aperture system determines a direction of arrival of a transmission based on port coordinates and the geometric relationship of the segments. The ports receive at least two orthogonal polarizations that characterize the incoming signals. Two angles are calculated by a simultaneous solution of two phase difference measurements to determine the direction of arrival. A mean direction of arrival solution is obtained by averaging solution estimates that are obtained by repeating the direction of arrival determination.


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