Research Of High-timeliness Satellite Control Technology

Along with the development of space technology, the number and variety of space target surveillance satellites is gradually increased. The information obtained via satellite has been widely used in all areas of human life and the corresponding task satellite detection demands are also increasing rapidly. The current management of the satellite sensor control is difficult to meet the demand of the further development of the satellite application, especially for the increasing demands of high-timeliness satellite control. Based on the user tasks and user demands, high-timeliness satellite control can distribute the satellite sensors and time efficiently and accurately. High-timeliness satellite control gives full play to the satellite system, making the usage of satellite resource more reasonable and efficient.In the paper, the basic functions of satellite management system is introduced, related concept is determined, and the requirement analysis on functions and performance of management system is completed. Based on the requirement analysis, the key technologies of high-timeliness satellite control system are concluded. The key technologies involve highly reliable automation control technology, high-timeliness mission planning technology and real-time instruction generation technology. The key problems are thoroughly analyzed, the technical difficulties are summarized and corresponding technical solutions are given.The design scheme of high-timeliness satellite control prototype system is proposed, in which the architecture of the system is introduced, as well as working mode, implementation process, software functions, software composition and software design. In this paper, based on the system design, the core hardware and software implementation of the prototype system is further implemented and the related functional and performance is tested. Through the application of high-timeliness satellite control technology in the prototype system, the advancement, feasibility and practicability of the proposed technology is verified in this paper.