Patent ID: 8742984
Filing Date: 2014-06-03
Classification: G01S

Abstract:
1. A method of calculating corrections to a navigation solution based on accurate data, comprising: receiving global navigation satellite system (GNSS) ephemeris, clock models and other navigation information from three GNSS satellites; performing pseudo-ranging to the three GNSS satellites; resolving a position, velocity and time (PVT) solution from the GNSS ephemeris, clock models and other navigation information, and the pseudo range measurements, wherein the PVT solution includes a statistical measure, wherein the statistical measure is based on protection levels or integrity risk; receiving differential GNSS data for calculating corrections to the PVT solution and calculating a corrected PVT solution based upon the differential GNSS data; comparing the corrected PVT solution to a region defined by the statistical measure, rejecting the corrected PVT solution when the corrected PVT solution is not within the region.