Telemetry, tracking and control for satellite cellular communication systems.

摘要

A Telemetry, Tracking and Control (TT&C) system for a satellite cellular communication system utilizing one of the user voice/data communication channels (104,140) to communicate TT&C data with a satellite (58) and through one satellite (52) to other satellites (54). A Global Positioning Receiver (GPS) (118) on board each satellite provides position control signals (124) to the on board satellite control subsystem (122) and the GPS receiver (118) communicates ephemeris information to a ground station (100) through the cellular user data channel (140). The system allows for constant TT&C communication to and from a mobile ground station (50) and to and from any satellite (52,54,58).