Patent ID: 8305266

Claim:
A network making it possible to calculate and provide ionospheric corrections to the users of a satellite navigation system, comprising: a spatial segment constituted by a plurality of satellites transmitting navigation signals at distinct frequencies and location corrections data to a user segment, a ground segment comprising a calculating system and means of transmission of data to the spatial segment in such a way that the calculating system compiles ionospheric delay measurements coming from a plurality of ground stations in order to calculate a grid of ionospheric corrections and that the transmission means transmit the grid of ionospheric corrections to the spatial segment, wherein the network also comprises: an aeronautical segment comprising an aeronautical user segment composed of a plurality of aircraft each one having an on-board RF receiver capable of measuring delays of the navigation signals transmitted by the satellites and an aeronautical data communication means between the plurality of aircraft and the ground segment in order to transmit said measurements of delays to the ground segment, means, at the level of the ground segment, of receiving measurements of delays used for the calculation of the grid, the measurements of delays coming from the plurality of aircraft and from the plurality of ground stations.