Study On Control And Design Of Configuration For Satellite Constellation

The constellation design is the premise of the deployment and the operation of satellite constellation, and the performance requirements on the deployment and the operation of satellite constellation are the important factors that affect the constellation design. Considering the constraint relations between the configuration and the operation of satellite constellation, the optimization design problems are studied on the perturbation compentation strategy, the configuration control, the spatial backup strategy, the regional coverage navigation constellation and the staged deployment navigation constellation.The basic orbits of satellite constellation and the basic restraints of constellation configuration are analyzed, and the basic configuration models and the state description models for satellite constellation are established. The relationships between the constellation geometry configuration and the performance of the operation and maintenance are studied, which include the allowable drifting most greatly, the long-term stability, the performance stair, the fault tolerance as well as the extendibility demand for constellation configuration.The stability of the satellite orbit, the constellation configuration and performance is analyzed. Based on the active deviation of the orbital parameters, the compentation strategy on the perturbation is designed, then the configuration optimaztion for the constellation using the compenstation strategy is finished, and the configuration stability of the satellite constellation is improved, and its suitable conditions and scopes also are analyzed.The characteristics and the process of the constellation configuration control are analyzed, and the control missions of the satellite constellation are determined. Based on the coverage performance requirements, the allowable drifting most greatly of the constellation configuration is computed. The partition separate sequence control strategy is presented, and applies it in the design of the constellation configuration. In view of the problems about the satellite breakdown or the satellite expiration, the reconfiguration control strategies including the neighboring phase and the even phase of the constellation configuration along-track are presented. The most superior constellation configuration transformation optimization criterions are established that the criterions considered the fuel consumption, the reconfiguration time, the fuel consumption uniformity and the performance repaired and all so, and the constellation configuration along-track expiration reconfiguration is realized. Take the space borne multistatic radar constellation as the background, the studies has carried on the regional coverage constellation configuration optimization design and the coordination control strategy. From the view to enhance the availability of the backup satellite, the orbit of the backup satellite is choice and designed, and the design performance analysis models of the constellation spatial backup strategy are established, and then the constellation spatial backup strategy optimization design method is presented based on the satellite reliability and MTTR (Mean Time To Repair).Based on the basic structures of the regional navigation constellation, the basic requirements and constraints of the regional navigation constellation are considered, and the mathematical model of the constellation optimization design is established. Based on the optimization strategy of MIGA (Multi-Island Genetic Algorithm), the global optimization design of the regional navigation constellation under the multi-objectives and the multi-constraints is carried on, and some design results, which meet mission requirements, are obtained. In view of the expansion performance requirements of the regional navigation constellation, the expansion optimization design of the regional navigation constellation based on the basic configuration is carried on. Considering the mission characteristics of the regional navigation constellation, the configuration design for the regional navigation constellation based on the compenstation strategy for the perturbations is finished.The staged characteristics of the deployment of the navigation constellation are analyzed, and the basic structure of the staged deployment navigation constellation is designed, and the design objectives and constraints of the staged deployment navigation constellation are determined, and then the optimization design models of the staged deployment navigation constellation are established. Overall considering the performance constraints including the configuration long-term stability, the configuration control, the system reliability, the system expense, the deployment strategy and the spatial backup strategy and so on and the mission requirements of the navigation constellation for our country, and then it is carried on the multi-objective optimization design of the staged deployment navigation constellation based on the optimization strategy of the multi-objective evolution algorithm and the multi-objective decision making of the linear weighted sum method.