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:
May. 24, 2016

Filed:

Dec. 16, 2013
Applicant:

Lockheed Martin Corporation, Bethesda, MD (US);

Inventors:

Michael A. Tomcsak, Orlando, FL (US);

Albert N. Pergande, Orlando, FL (US);

Kenneth R. Hollon, Orlando, FL (US);

Alexander T. Shepherd, Plant City, FL (US);

Assignee:

Lockheed Martin Corporation, Bethesda, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/91 (2006.01); G01S 13/93 (2006.01); G01S 13/44 (2006.01); G01S 13/04 (2006.01); G01S 13/00 (2006.01);
U.S. Cl.
CPC ...
G01S 13/913 (2013.01); G01S 13/04 (2013.01); G01S 13/44 (2013.01); G01S 13/93 (2013.01);
Abstract

Mechanisms for identifying obstacles in a landing zone are disclosed. A first polarization elevation angle matrix is generated based on reflected radar signals having a first polarization sense. A second polarization elevation angle matrix based on reflected radar signals having a second polarization sense that differs from the first polarization sense is generated. The first polarization elevation angle matrix and the second polarization elevation angle matrix are integrated to form an integrated elevation angle matrix that identifies first scatterers and second scatterers with respect to the landing zone.


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