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:
Dec. 03, 2013
Filed:
Jun. 30, 2011
A. Douglas Meyer, Woodland Hills, CA (US);
Mostafa A. Karam, Moorpark, CA (US);
Charles A. Lee, Camarillo, CA (US);
Charles H. Volk, Newbury Park, CA (US);
A. Douglas Meyer, Woodland Hills, CA (US);
Mostafa A. Karam, Moorpark, CA (US);
Charles A. Lee, Camarillo, CA (US);
Charles H. Volk, Newbury Park, CA (US);
Northrop Grumman Guidance an Electronics Co., Inc., Woodland Hills, CA (US);
Abstract
A sensor system uses ground emitters to illuminate a projectile in flight with a polarized RF beam. By monitoring the polarization modulation of RF signals received from antenna elements mounted on the projectile, both angular orientation and angular rate signals can be derived and used in the inertial solution in place of the gyroscope. Depending on the spacing and positional accuracies of the RF ground emitters, position information of the projectile may also be derived, which eliminates the need for accelerometers. When RF signals of ground emitter/s are blocked from the guided projectile, the sensor deploys another plurality of RF antennas mounted on the projectile nose to determine position and velocity vectors and orientation of incoming targets.