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:
Jul. 24, 2007
Filed:
Jun. 10, 2004
James R. Hager, Golden Valley, MN (US);
David V. Hansen, Eden Prairie, MN (US);
Curtis J. Petrich, Minneapolis, MN (US);
James R. Hager, Golden Valley, MN (US);
David V. Hansen, Eden Prairie, MN (US);
Curtis J. Petrich, Minneapolis, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method for maintaining a position of a hovering vehicle that incorporates a radar altimeter is described. The method includes receiving signals at the radar altimeter based on a change of horizontal direction, operating the radar altimeter to generate a Doppler frequency spectrum based on the received signals, and determining a change in vehicle direction and velocity which will reduce a width of the Doppler frequency spectrum of the received signals. A radar altimeter which generates the Doppler frequency spectrum is also described.