Design And Implementation Of Situation Display System For Space Mission Deduction Platform

With the increasingly complex trend of space powers competing for space,in order to maintain space security and protect space interests,various space missions are also increasing day by day.It is necessary to obtain the current operating status of space mission targets in a timely and accurate manner,and to control future changes.Trend,that is,the spatial situation.Real-time grasp of space mission situation is an indispensable part of space mission execution.Through space mission deduction and demonstration,mission cycle is shortened,costs are reduced,and the risk of collision damage to spacecraft is reduced.This paper takes the application of satellite collision avoidance as an example to design a space Mission deduction situation display system to meet the requirements of space mission situation display.The main research contents are as follows:（1）Analyzed the deduction task requirements,designed the overall system architecture;analyzed the functional requirements of the space situation display map,designed the overall plan of the situation display system,and completed the space mission scene display and space launch process display combined with the satellite collision avoidance deduction process.,Space flight situation display design.（2）The theoretical support for the deduction process of the satellite collision avoidance mission is studied.The linear equation of relative motion between the target satellite and the collision object is studied by the orbital dynamics equation,and the state transition matrix of the relative motion equation is obtained by solving it.Based on the state transition matrix of the relative motion equation,the propagation characteristics of satellite orbital position error and velocity error are analyzed,and the orbital error covariance matrix is finally obtained.Based on the three-dimensional Gaussian distribution,the calculation model of satellite collision probability is deduced.The optimal maneuvering direction is used to change the orbit of the satellite incrementally to achieve collision avoidance.（3）The multi-source heterogeneous data of spatial scene entities are processed uniformly and the storage structure is divided,and technical methods such as structure adjustment,intermediate cache,and message queue are used to optimize the scene.Combined with the research content of this subject,the first version of the space mission deduction situation display system was developed in cooperation with a space technology research institute.Implement space missions and grasp the space situation in real time...