Patent ID: 9625614
Date: 2017-04-18
CPC Classifications: G01W,G06F

Claim:
1. A computerized method for modeling atmospheric properties, comprising: receiving, at a central processor, data from a plurality of Global Positioning System (GPS)-enabled devices; determining, based at least in part from the data from the plurality of GPS-enabled devices, water vapor content; receiving, at a central processor, access to one or more computer-based atmospheric models representative of atmospheric parameters including water vapor content; calculating, based at least in part on the determined water vapor content, a propagation delay associated with the water vapor content; and simultaneously estimating, at the central processor, a propagation velocity of one or more signals received at each of the GPS-enabled devices from one or more GPS satellites, and a position error value for each of the GPS-enabled devices; wherein the central processor simultaneously estimates the propagation velocity and the position error value by iteratively updating the one or more atmospheric models based on the determined water vapor content and correcting for the calculated propagation delay at each of the plurality of GPS-enabled devices.