System and method for satellite positioning

Abstract

A system and method for determining a position of a mobile receiver including receiving a set of satellite observations, the set of satellite observations corresponding to a set of satellites; determining a state vector at each of a plurality of filters, wherein each filter determines the respective state vector based on a unique subset of the set of satellite observations; after a convergence criterion is satisfied, determining a converged state vector based on the respective integer ambiguity hypotheses; and determining the position of the mobile resolver based on the converged state vector.

We claim: 
     
         1 . A method for determining a position of a mobile receiver comprising:
 receiving, at the mobile receiver, a set of satellite observations, the set of satellite observations comprising code data and carrier phase data, the set of satellite observations corresponding to a set of satellites, wherein the set of satellites correspond to a plurality of satellite constellations, wherein the set of satellite observations are measured during a time period;   correcting the set of satellite observations based on a location correction received from a set of reference stations;   independently determining an integer ambiguity hypothesis at each of a plurality of Kalman filters, wherein each Kalman filter determines the respective integer ambiguity hypothesis based on a unique subset of the set of satellite observations, while each Kalman filter satisfies a continuing criterion;   after a convergence criterion is satisfied, determining a converged integer ambiguity based on the respective integer ambiguity hypotheses; and   determining the position of the mobile resolver based on the converged integer ambiguity.