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Method and apparatus for a satellite payload and radiodetermination

  • US 20040145517A1
  • Filed: 01/05/2004
  • Published: 07/29/2004
  • Est. Priority Date: 10/24/1995
  • Status: Abandoned Application
First Claim
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9. A method of satellite radiodetermination, comprising receiving a multiple frequency ranging signal from a first satellite;

  • receiving a further ranging signal from a second satellite, deriving first ionospheric delay data from said multiple frequency ranging signal; and

    estimating second ionospheric delay data for the further ranging signal on the basis of said first ionospheric delay data.

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