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Methods and systems for measuring terrain height

  • US 7,145,501 B1
  • Filed: 09/26/2005
  • Issued: 12/05/2006
  • Est. Priority Date: 09/26/2005
  • Status: Active Grant
First Claim
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1. An altitude measuring system comprising:

  • a radar altimeter configured to measure an altitude; and

    a digital terrain database comprising data relating to terrain elevation and at least one data parameter relating to an accuracy of the terrain elevation data and the altitude measured by said radar altimeter.

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