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:
May. 15, 2012
Filed:
May. 13, 2010
Yassir Azziz, San Mateo, CA (US);
Alicia Kavelaars, Berkeley, CA (US);
Xen Price, Redwood City, CA (US);
David Cielaszyk, Longmont, CO (US);
Rob Schwarz, Los Gatos, CA (US);
Yassir Azziz, San Mateo, CA (US);
Alicia Kavelaars, Berkeley, CA (US);
Xen Price, Redwood City, CA (US);
David Cielaszyk, Longmont, CO (US);
Rob Schwarz, Los Gatos, CA (US);
Space Systems/Loral, Inc., Palo Alto, CA (US);
Abstract
Estimation of a desired antenna tracking profile is provided for a radio frequency autotracked (RFAT) antenna in the absence of a ground reference. A first RFAT antenna subsystem has a first antenna and a first antenna positioning mechanism (APM), each mounted on a vehicle, and a first ground-based RF beacon; a second RFAT antenna subsystem has a second antenna and a second APM, each mounted on the vehicle, and a second ground-based RF beacon. A controller stores an accumulated record of actuations of the second APM as a function of time under normal operation, calculates a desired antenna tracking profile for the second antenna, from a first ground-based RF beacon and from the accumulated record, excluding any real-time data from the second ground-based RF beacon, and transmits actuation commands to the second APM so as to cause the second antenna to track the desired antenna tracking profile.