Patent ID: 9612340
Date: 2017-04-04
CPC Classifications: G01S

Claim:
1. A method comprising: determining first navigation observables by a navigation device from signals of one or more navigation beacons, the first navigation observables including information for determining a position, velocity and time (PVT) solution; submitting the first navigation observables from the navigation device to a navigation server; receiving crowd-sourced augmentation information by the navigation device from the navigation server in response, the augmentation information including corrections for perturbations in the first navigation observables that may reduce precision of the PVT solution, the crowd-sourced augmentation information being generated by the navigation server based on PVT solutions submitted by a plurality of navigation devices; and determining, by the navigation device, the PVT solution using second navigation observables and the augmentation information, including correcting the perturbations in the second navigation observables according to the augmentation information.