System and method for validating gnss ambiguities

Abstract

A system and method for determining a GNSS receiver position includes receiving a first and a second set of satellite observations; determining a first and second ambiguity set associated with a first and second transformation respectively; determining cross-validated ambiguities between the first and second ambiguity sets; and determining the GNSS receiver position based on at least one of the first or second ambiguity sets.

We claim: 
     
         1 . A method comprising:
 receiving a first and a second set of satellite observations;   determining a first ambiguity set associated with the first set of satellite observations and a second ambiguity set associated with the second set of satellite observations;   transforming the first and second ambiguity sets to a shared intersection space;   determining whether ambiguities from the first and second ambiguity sets are valid based on a comparison of the first and second ambiguity sets in the shared intersection space; and   when the ambiguities are valid, determining a position of a GNSS receiver based on at least one of the first or second ambiguity sets.