Development of the Lunar-Earth and Deep Space TT&C System with Several Key Techniques

This paper analyzes the present research status of the lunar-earth and deep space telemetry, track and command (TT&C) system, four major difficulties and challenges to establish the TT&C system are studied. Then urgent needs for antenna arraying technology, laser TT&C technology, Ka and millimeter-wave band hypothermia receiver, superconducting nanowire single photon detectors, deep space optical tracking system, narrow linewidth laser source generating technology, optical communication modulation technology and high-power low-noise amplifier were summed up. A latest cutting-edge technology for deep space TT&C system, namely the iROC (integrated radio and optical communications, iROC) system was described. Finally, with the current situation, the recommendations of future developments of the lunar-earth, deep space TT&C system have been put forward. The research results can supply references for the development of the lunar-earth, deep space TT&C system.