The Single Satellite Early Warning Ballistic Missile Parameter Estimation Research

The early warning of single satellite is a necessary process and an important part of the early warning system. As forepart warning, it is very important to give trajectory course information early to radar system for putting a tail on the missile. The trajectory estimation and prediction in the space early warning system is a typical application of data fusion technique in the target tracking field. It is an integrative data processing method, which synthesizes the information detected by sensors and employs the mathematical models construction to estimate the moving state of the target and the prediction of impact point.With the development of the trajectory estimation and prediction techniques in the space early warning system in recent years, especially the urgent demands in military affairs, research in the trajectory estimation and prediction techniques using a single satellite has been increasingly embedded and broadened.This paper is based on the background of the single satellite's trajectory estimation and prediction. With the synthetic employment of tools such as curve fitting, nonlinear regression analysis and kalman filtering, we have made a deep study into the profile matching estimation method of the boost phase of a target of based on the priori information. A new trajectory estimation method using dynamic equation is put forward, and a systematic precision index analysis for the trajectory estimation is presented. The main work and the innovation results of this paper consist of three parts as follows: The first: with an eye to build a new method based on the dynamic equation for the single satellite's trajectory estimation and prediction, we make its dependency on the trajectory template reduced greatly. The second: make good use of the information we can easily acquired besides the full trajectory template to improve the single satellite's trajectory estimation and prediction's precision, and analyzed the organization structure and the content of this information.The early warning of a single satellite is a necessary process and an important part of the early warning system. As single satellite belong to the condition of incomplete surveys, the missile trajectory as well as the warning information is estimated based on early warning database. So it is very important to construct early warning database. In this paper, based on the missile characteristic of the essence analyzed, the method is established to obtain ballistic trajectory in order to make early warning of a single satellite possible. Therefore, the corresponding simulation computation has been carried on and shows the method in this paper feasible.To give course head estimation early for ground-base radar system putting a tail on ballistic missile in early warning phase of single satellite, this paper establish a new method based on missile dynamics equation to obtain course head without prior trajectory template information supporting. The corresponding simulation computation shows the method's correctness and value, and then a feasible method to ballistic missile head course estimation in early warning phase with space-based early warning system is given.In this paper, based on the missile momentum equation, taking into account the basic physics'restrictions in missile's manufacture and flight, a new method is established to obtain the trajectory course by early warning of single geosynchronous satellite, without prior information supporting. The corresponding simulation computation has been carried on and shows the method's correctness and value in this paper.The space-based early warning system is the national strategy early warning system's important component, the space-based system guides the ground early warning radar to carry on the missile's following track, the guidance connection process is the missile defense core link, but it is unable to separate the warhead and the partner merely based on the radar echo characteristic information, this article proposed distinguishes the partner flies one algorithm based on the fuzzy clustering algorithm, the simulation computed result indicated that this article method has the high rate of accuracy and the very good practical value.The astronautics oriented computer simulation has two remarkable characteristics: one is the high dynamics of the simulation scenario; the other is the huge quantity of computing. For developing an astronautics simulation platform and cluster computing environment (abbr. ASPCCE), five strategies are presented in this paper to meet the above two requirements in complex scenario simulating computing (such as constellation optimization, resource scheduling and space-based early warning et al): 1. To increase ASPCCE's numerical calculation ability and controllability, distributed clusters are employed as the computing environment; 2. To enhance ASPCCE's dynamic simulation adaptation, the development is based on the high level architecture and the agent technology; 3. To meet the complex imaging model and the scenario demonstration's requirements, a new 3D rendering engine is designed; 4. To achieve ASPCCE's expansibility, the combination of the plug-in framework and the scripting language are adopted; 5. To accelerate the development of ASPCCE, many existing open source software are integrated following the open source strategy, and the outcome will be an open source software as well.