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Method for reducing nuisance alarms for anti-collision with obstacles on aircraft

  • US 7,826,971 B2
  • Filed: 03/13/2008
  • Issued: 11/02/2010
  • Est. Priority Date: 03/13/2007
  • Status: Active Grant
First Claim
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1. Anti-collision method for aircraft, the aircraft includes:

  • means for calculating the speed of the aircraft;

    means for calculating extrapolated positions of at least one trajectory of the aircraft, the said extrapolated positions being calculated for a fixed maximum time period, called extrapolation time; and

    a topographical database of the terrain and of the obstacles, the said database comprising, within a given perimeter, obstacle density data;

    Where said method comprises the calculation of a weighting coefficient for the extrapolation time of the extrapolated trajectories of the aircraft as a function of data on obstacle density within a given perimeter.

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