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本文讨论跟踪及数据中继卫星系统（ＴＤＲＳＳ）的正反向通信链路。包括：１）Ｓ波段多址勤务链路的相控阵天线地面多波束形成及自适应对准；２）把ＴＤＲＳ上的３０个单元天线的接收信号传回地面并保证各路之间相对相位、振幅的稳定；３）Ｋｕ波段单址勤务链路中ＴＤＲＳ与用户飞行器天线相互捕获与跟踪；４）扩频—测距码的快捕。
This article discusses the Forward and Reverse communication links for the Tracking and Data Relay Satellite System (TDRSS). Including: 1) multi-beam formation and adaptive alignment of phased array antennas in S-band multi-service links; 2) transmitting the received signals of 30 unit antennas on the TDRS to the ground and ensuring the relative phase between the various channels , Amplitude stability; 3) Ku band single service link TDRS and user aircraft antenna capture and tracking each other; 4) Spread spectrum - ranging code fast capture.