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Method for independent alignment of an inertial unit for an onboard instrument of an aircraft

  • US 8,607,613 B2
  • Filed: 12/02/2008
  • Issued: 12/17/2013
  • Est. Priority Date: 12/21/2007
  • Status: Active Grant
First Claim
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1. A method for independent alignment of an inertial measurement unit for an onboard instrument which can equip an aircraft, the method comprising:

  • determining a status of whether the aircraft is in flight, wherein when the aircraft is detected as being in flight, carrying out a flight alignment; and

    when the aircraft is not detected as being in flight, determining a stability of the aircraft to determine whether the aircraft is on the ground or at sea,wherein when the aircraft is detected as being on the ground, carrying out a ground alignment, and when the aircraft is detected as being at sea, carrying out a sea alignment.

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