Abstract: Abstract：In view of the shortcomings of the existing groundbased deep space communication system, such as insufficient communication distance and insufficient data rate in deep space, a spacebased active communication and space radio telescope function system based on distributed cooperative control method is proposed. The system is deployed in GEO, consisting of a feed source satellite, a central satellite and 4294 unit satellites, through a precise formation and onorbit assembly. The system integrates the functions of spacebased active communication and radio astronomy telescope. The system can provide a deep space station for deep space detector, due to deploying in GEO, no atmosphere and cloud, which can greatly improve the communication distance and data rate of deep space exploration. What’s more, resolution and sensitivity of the radio telescope can upgrade 12 orders.  

Key words: Keywords：spacebased communication, radio telescope, deep space communication, distributed cooperative control, precision formation, onorbit assembly