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:
Jan. 27, 2015
Filed:
Jun. 05, 2013
Airbus Helicopters, Marignane, Cedex, FR;
Jerome Gardes, Aix en Provence, FR;
Jean-Paul Pinacho, Molleges, FR;
Philippe Gaulene, Marignane, FR;
Airbus Helicopters, Marignane Cedex, FR;
Abstract
A procedure and a device for the determination of current airspeeds [] of a rotorcraft [] in a stationary flight regime and/or at low speeds. A calculation system [] incorporates two pairs of polynomial calculation laws [] that are executable successively by pairs. A pair of first polynomial laws [] calculates estimated airspeeds [], consisting respectively of longitudinal and lateral airspeeds, and is constructed through multilinear regression based on parameters relating to simulated flight points [] defined by means of a flight simulator []. A pair of second polynomial laws [] calculates the current airspeeds based on the estimated airspeeds [], and is constructed through multilinear regression based on parameters relating to test-flight points defined by means of test flights [