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:
Sep. 18, 2007
Filed:
Jul. 15, 2004
Kenneth W. Mcelreath, Mt. Vernon, IA (US);
Kenneth W. McElreath, Mt. Vernon, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
An aircraft formation positioning system lead aircraft transmits a continuous RF signal and a periodic data burst with lead aircraft position. A follower aircraft receives the continuous RF signal and the periodic data burst. A follower aircraft resolver determines bearing, distance and elevation relative to the lead aircraft from the continuous RF signal. The follower aircraft transmits an intermittent RF signal and a periodic data burst with its relative position determined from the continuous RF signal. The lead aircraft receives the intermittent RF signal and the periodic data burst from the follower aircraft. A lead aircraft resolver performs an independent measurement of the lead aircraft position relative to the follower aircraft from the intermittent RF signal. A lead aircraft Kalman filter connected to the lead aircraft resolver and receiver correlates the independent measurement of the lead aircraft position relative to the follower aircraft with the received periodic data burst.