×

Method and receiver using a low earth orbiting satellite signal to augment the global positioning system

  • US 5,944,770 A
  • Filed: 11/28/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 12/28/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A receiver system, comprising:

  • a first receiver for determining a first global positioning system (GPS) carrier phase from a GPS signal, determining a first low Earth orbiting (LEO) carrier phase from a LEO satellite signal, and issuing information for said first GPS carrier phase and said first LEO carrier phase in an output signal; and

    a second receiver for receiving said output signal, determining a second GPS carrier phase from said GPS signal and a second LEO carrier phase from said LEO satellite signal, and computing a location vector between a geographical location of the first receiver and a geographical location of the second receiver based upon differences between said first and said second GPS carrier phase and said first and said second LEO carrier phase.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×