Design And Analysis Of The Satellite High-precision Tracking And Pointing Control Ground Simulation System

With the rapid development of multi-aircraft systems and artificial intelligence technology,the space industry has put forward the development plan of remote repair of space satellites to make up for the limitations and deficiencies of traditional repair methods.In the space satellite remote repair system,the tracking and control performance of the tracking satellite has a decisive effect on the repair effect.The breakthrough of its key technology urgently requires reliable and effective experimental testing and verification on the ground.Under this background,this paper proposes a set of high-precision tracking and pointing control ground simulation system design solutions for tracking satellites in the acquisition,tracking and remote repair pointing control of key technologies,and puts forward a method for evaluating the effectiveness of the simulation system.It provides an effective analysis method for the credibility of the test results of the simulation system,and at the same time provides an effective simulation analysis method and verification method for the key technical problems of remote repair tasks in China.First,this paper studies the research status of the ground simulation test of satellite attitude orbit control.The theoretical framework involved in the satellite attitude and orbit control ground simulation test is analyzed.On the basis of introducing the working principle of the air float table,the kinematic model and dynamic model of the air float table are established;the CW equation is derived,and the target satellite and The relative motion relationship between the tracking satellite,the repair unit and the tracking satellite,and the repair unit and the target satellite provides theoretical support for the design and implementation of the subsequent simulation system.Secondly,the theory of space-time shrinkage ratio is studied and the influence of shrinkage ratio design on the system accuracy is analyzed.Based on the study of the relative motion of two satellites in space,the theory of space-time shrinkage ratio is analyzed and analyzed.After considering the constraints of various aspects of the system,the coefficient of space-time shrinkage ratio is determined,and the effect of space position shrinkage ratio on system accuracy is analyzed.Impact,thereby ensuring the feasibility of the reduction scheme.Thirdly,the design and implementation of the satellite high-precision tracking and pointing control ground simulation system are studied.According to the functional requirements of the simulation system,the design of the overall scheme of the simulation system and the planning of the test content are proposed.At the same time,the overall layout of the system is determined,the binding relationship between the coordinate systems is derived for the coordinate systems involved in the system,and then the design scheme of each subsystem in the simulation system is given,and the development of comprehensive monitoring software is completed.Finally,in order to evaluate the effectiveness of the designed simulation system,an effectiveness evaluation method based on AHP and improved information entropy is proposed.First,a method for evaluating the effectiveness of the simulation system based on AHP is proposed,and a hierarchical model of the simulation system is established.According to the hierarchical model,after the derivation and calculation of the similarity corresponding to each similarity element is completed,from points to total,we obtain The credibility of the simulation system as a whole is analyzed,and the effectiveness and feasibility of the simulation system are analyzed.Aiming at the problems and shortcomings of the analytic hierarchy process,an efficiency evaluation method based on improved information entropy is proposed.According to the two simulation tasks involved in the system,a simulation test information flow chart is constructed,the analysis results are given,and the simulation system is further verified The feasibility of the simulation and the validity of the simulation test results to achieve the effectiveness evaluation of the simulation system.