Communications systems and procedures for land mobile satellite terminals

摘要

A method for controlling an antenna of a satellite communications network satellite, wherein the satellite comprises a software processor board and the antenna is directional and has a footprint coverage, the method characterized by the steps being: (a) packing a uplink signal (2504) with data relating to a terrestrial terminal target in the network of satellite communications and shipping uplink signal (2506) to the satellite, which data is selected from the group consisting of identification data, geo data and combinations thereof; (B) receiving, demodulating and unpackaging the uplink signal (2510) to determine the current target geoposition ground terminal; (C) comparing data geoposition (2604) corresponding to the center of the footprint current antenna coverage for the current control target geoposition ground terminal; (D) creating an error value (2606) based on the comparison; and (e) error correction (2608) orienting the antenna to control in order to ensure target coverage Earth terminal, wherein steps (b) - (e) are performed in real time by the processor software board (400).