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:
Oct. 27, 2015

Filed:

Oct. 26, 2012
Applicant:

Honeywell International Inc., Morristown, NJ (US);

Inventors:

Eduard Shestak, Redmond, WA (US);

Ruy C. Brandao, Redmond, WA (US);

Assignee:

Honeywell International Inc., Morristown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/93 (2006.01); G01S 3/48 (2006.01);
U.S. Cl.
CPC ...
G01S 13/9303 (2013.01); G01S 3/48 (2013.01);
Abstract

Systems and methods for improving bearing initialization for a pair of two-element antennas. An exemplary system includes two-element antennas mounted on the bottom and top of an aircraft fuselage, an output device, and a processing device. The processing device receives phase-difference information based on phase of signals received at each element of a two-element antenna, determines if the received phase-difference information is within a predefined low-confidence region, and initializes bearing if the phase-difference information is not within the low-confidence region or the phase-difference information from a predefined number of consecutively received signals meets a predefined consistency requirement.


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