Efficiency Improvement Technologies for Tracking and Data Relay Satellite System
LI Yuhen · Zhongguo kongjian kexue jishu · 2014
Based on the current tracking and data relay satellites system(TDRSS),a satellite companion control strategy was presented.It takes the advantage of the coverage difference between Ka-band and S-band of a TDRS′inter-satellite antenna to provide data relay service for two user satellites simultaneously.When these two satellites are covered by the TDRS′s antenna,one user satellite can be serviced in Ka-band and the other one can be serviced for telemetry and telecommand control in S-band.As a result,the efficiency of a TDRS′usage can be improved by 8%.Meanwhile,in order to provide quick service for a user satellite with an emergency service demand,a hand-shaking waiting strategy which compressed the response time to 1/14of the previous one was proposed.These innovative technologies can improve the usage efficiency of the TRDSS application.