Study On Key Technologies Modeling And Simulation Of Command And Control System In Ballistic Missile Defense

Ballistic missiles are great powerful precision-guided weapons in modern wars. With ballistic missiles and penetration technologies being developing, the research of ballistic missile defense (BMD) technologies and programs is an urgent requirement for us. Command and control system is the core of the BMD program. Among its processes, information fusion, target assignment, and other key technologies play important roles in missile defense operations. Deeply researching on the key technologies of command and control system can provide not only the technology support for development of our BMD program, but the reference for the improvement of our ballistic missile penetrating capability, which is an advanced problem with momentous martial values and practical significance.Taking research of ballistic missile defense in midcourse as the background, key technologies of command and control system in BMD program is researched, including methods of asynchronous track correlation and target assignment strategies. Furthermore, modeling and simulation technology of command and control system is researched based on the construction of the relative distributed simulation system of ballistic missile penetration and defense program.Analysis and characterization on tracking information of Ballistic targets in midcourse, is precondition of study on the key technologies of command and control system. Accordingly, the paper first analyzes main components of the Ballistic target tracking system in midcourse of BMD program. Secondly, based on active and passive sensor characteristics in target tracking system, analysis and characterization of the tracking information is researched from tripartite aspect of motion model, measurement model and filtering model.Asynchronous track correlation is the key to information fusion in command and control system of BMD program. Two approaches are proposed with asynchronous track correlation: one is converted to synchronous track correlation through time calibration on asynchronous track data; the other matches macroscopical feature information which is extracted from track data through scientific methods. According as the first approach, the extrapolation of Least Mean Square (LMS) algorithm, the piecewise polynomial interpolation, and the B-spline fitting is proposed; According as the second approach, asynchronous track correlation method based on Bezier curve fitting is proposed. Some useful conclusions are obtained through simulation.Target assignment strategy plays a key role for command and control system operational effectiveness in BMD program. According as main study line of "optimization factor→optimization criteria→optimization model", based on different war scene characteristics of BMD in midcourse, a unified adaptive assignment optimization model is established, which converts it to combinatorial optimization problem. Then the method of improved Particle Swarm Optimization (PSO) is proposed. Simulation results show its effectiveness and superiority.The research of key technologies of the command and control system in BMD program can hardly be accomplished without testing and validating platform. In the last part of this dissertation, distributed simulation platform of ballistic missile penetration and defense based on HLA is constructed, and a typical command and control simulation system based on distributed simulation platform is given.