Integration and Interoperations between Two Ground Stations in a GEO Satellite TT&C System
Zhao Jun-xian · Telecommunication Engineering · 2014
In general,the TTC system is composed of two stations separated on geographical positions for the foreign commercial Geostationary Eearth Orbit(GEO) satellites exported from China. Each station includes a satellite control center(SCC),baseband equipment(BBE),RF links and antenna. In order to improve the reliability of ground control system and decrease the operator number,it is necessary to make integrated design for two independent stations. This paper brings forward that two stations are integrated together by means of designing the interface of SCC,monitoring and control system(MCS) and BBE used in two stations and keeping two stations' SCC database synchronous. Under the cooperation of MCS,the interoperations between two stations are achieved in different working mode of telemetry,telecommand,ranging and calibration. Each SCC can receive telemetry data,send telecommand and ranging signal to satellite through any BBE,RF link and antenna in two stations. The design method of two stations' integration and interoperation has been implemented in many satellites exported from China and the system running cost is decreased clearly.