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METHOD AND DEVICE FOR ESTIMATING AT LEAST ONE WIND CHARACTERISTIC ON AN AIRCRAFT

  • US 20100241294A1
  • Filed: 03/08/2010
  • Published: 09/23/2010
  • Est. Priority Date: 03/17/2009
  • Status: Active Grant
First Claim
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1. A method for automatically estimating aboard an aircraft (AC) at least one wind characteristic existing outside said aircraft (AC), such a method wherein, upon said aircraft (AC) flying, the following automated operations are performed:

  • a) a first piece of speed information is received relating to the speed of the aircraft (AC) in a terrestrial reference system, being expressed in a first point (G) of the aircraft (AC);

    b) a second piece of speed information ({right arrow over (Vair)}) is received relating to the speed of the aircraft (AC) in the air, being expressed in a second point (A) of the aircraft; and

    c) from at least said first and second speed information, said wind characteristic is determined in said terrestrial reference system, such a wind characteristic being determined taking into account a corrective term being representative of an apparent wind,wherein said corrective term TC is calculated using the following expression;


    TC={right arrow over (Ω

    )}̂

    {right arrow over (GA)}wherein;

    ̂

    represents the vector product;

    {right arrow over (Ω

    )} represents the rotation rate of the aircraft (AC) in an inertial reference system;

    G represents a reference point of the aircraft (AC), corresponding to said first point; and

    A represents the position on the aircraft (AC) of at least one anemometric probe, the measurements thereof being used for determining said second piece of speed information, such a position A corresponding to said second point.

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