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:
Feb. 24, 2004
Filed:
May. 06, 2002
Applicant:
Inventors:
Richard A. Lodwig, Gaithersburg, MD (US);
Bonnie L. Adams, Gaithersburg, MD (US);
Gregory A. Baker, Colorado Springs, CO (US);
Assignee:
Lockheed Martin Corporation, Gaithersburg, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/308 ;
U.S. Cl.
CPC ...
G01S 1/308 ;
Abstract
A system and method for detecting and tracking a target object, including the calculation of the target object's altitude, is disclosed. During the processing of signals received by a receiver, the system selectively calculates the altitude of the target object from signals modified by an interference effect pattern formed by the signals broadcast by a transmitter, or from the calculation of geometric shapes associated with three or more transmitters and determining the intersection point of those shapes.