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. 13, 2008
Filed:
Nov. 01, 2006
Jeffrey E. Outwater, Agoura Hills, CA (US);
Jeffrey E. Outwater, Agoura Hills, CA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Tracking of collocated satellites is accomplished by providing a single tracking antenna having a tracking feed and combiner which receives a first satellite signal. A first pointing error signal is extracted from the tracking feed based on the first satellite signal and the antenna is steered to a pointing angle to minimize the first pointing error signal. A second satellite signal is received and a second pointing error signal is extracted from the tracking feed based on the second satellite signal. An offset angle for the second satellite is then calculated from the second pointing error signal relative to the pointing angle of the antenna. Orbit estimation and can then be accomplished for the second satellite based on the offset angle directly or by conversion to an absolute angle.