Patent ID: 7987048

Claim:
A method of locating position of a satellite signal receiver, comprising: measuring at least one fractional pseudorange between the satellite signal receiver and a respective at least one satellite; measuring at least one instantaneous Doppler measurement for a respective at least one satellite signal relative to the satellite signal receiver; transmitting the at least one pseudorange and the at least one instantaneous Doppler measurement to a server; and computing a position of the satellite signal receiver at the server using the at least one pseudorange and the at least one instantaneous Doppler measurement, wherein computing comprises: computing an initial position of the satellite signal receiver using the at least one instantaneous Doppler measurement; computing an integer millisecond portion of the at least one fractional pseudorange using the initial position to form at least one full pseudorange; forming pseudorange residuals using the at least one full pseudorange and the initial position; and computing an update of the initial position.