Software defined TT&C system architecture and key technology

In order to meet the rapidly changing needs of civil and commercial aerospace TT&C and the explosive growth of TT C tasks caused by the rapid development of small satellites and large constellations, software-defined technology, which is considered a revolutionary technology that changes the rules of the game, was introduced from the internet industry into aerospace TT &C systems, a software-defined aerospace TT &C system architecture was proposed,and a new round of technological innovation in the TT &C system was realized. Firstly, the architecture and existing problems of the traditional TT C system were analyzed,and then the technical characteristics of the softwaredefined aerospace TT &C system were discussed, such as hierarchical design standards, open application interfaces, centralized system control, and flexible reorganization of basic resources. Then, the advantages of the architecture and four key technologies including standard interfaces and specifications, software-defined RF front-end, software-defined channel and software-defined baseband were analyzed, and the development of software-defined TIZ-C system was prospected. The research results show that compared with the traditional TT&C system, the software-defined aerospace TT&C system architecture can better meet the needs for TT&C resources of the growing aerospace industry.