Method for optimising positioning data processing where there are several satellite positioning constellations

摘要

The method involves determining a pre-location of a mobile terminal, and estimating position of satellites of satellite constellations. A list of satellites visible from the terminal is determined according to the pre-location of the terminal and estimated position of the satellites. The elevation and azimuth of each satellite is calculated based on the position of the terminal. The satellites are sorted by privileging one of the constellations and by excluding the satellites belonging to another constellation from the list. An independent claim is also included for a system for managing satellite positioning signals from satellite constellations.