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Situation dependent lateral terrain maps for avionics displays

  • US 20040059473A1
  • Filed: 09/23/2002
  • Published: 03/25/2004
  • Est. Priority Date: 09/23/2002
  • Status: Active Grant
First Claim
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1. A method for adapting an aircraft terrain display in response to situational parameters comprising:

  • computing a parameter to characterize terrain roughness for an area of terrain to be displayed;

    computing a contrast multiplier as a function of the terrain roughness;

    multiplying the contrast multiplier by a situation parameter that varies depending upon the flight mode of the aircraft;

    computing a lighting component for each terrain data point;

    multiplying the lighting component for each data point to obtain a set of terrain data to be displayed; and

    displaying the terrain data on the display.

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