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:
Jul. 18, 2017

Filed:

Aug. 20, 2013
Applicant:

Lockheed Martin Corporation, Bethesda, MD (US);

Inventors:

Russell K. Johnson, Half Moon Bay, CA (US);

James Alan Ivey, Palo Alto, CA (US);

Yadunath Bhagvantrao Zambre, Los Altos Hills, CA (US);

Assignee:

LOCKHEED MARTIN CORPORATION, Bethesda, MD (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04K 3/00 (2006.01); H01Q 3/26 (2006.01);
U.S. Cl.
CPC ...
H04K 3/44 (2013.01); H01Q 3/2605 (2013.01); H01Q 3/2617 (2013.01); H04K 3/228 (2013.01); H04K 3/43 (2013.01); H04K 3/45 (2013.01); H04K 2203/32 (2013.01);
Abstract

A method for waveform-enabled jammer excision (WEJE) may include performing a jammer measurement during a look-through window when no signal-of-interest (SOI) is present and obtaining a jammer signal. A SOI-plus-jammer measurement may be performed and a SOI-plus-Jammer signal may be obtained when both the jammer signal and the SOI are present. Optimal weights that maximize a SOI-to-jammer power ratio may be determined. SOI-plus-jammer signals from a number of antenna elements may be optimally weighted and combined to copy the SOI and null the jammer signal based on the determined optimal weights.


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