天基雷达特殊背景下的目标跟踪技术研究

Research on Target Track Technology in the Special Space Based Radar Condition

天基雷达是雷达置于卫星平台上的,用于地面及空中目标探测与跟踪的一种新型雷达系统,研究跟踪卫星频繁交接情形下的目标跟踪技术对于天基雷达系统跟踪性能的实现具有重要意义。针对天基雷达特殊背景下的目标跟踪问题,基于圆形地球模型的假设条件,给出了目标跟踪的实现方法,包括跟踪平台交接判别方法、目标状态方程及观测方程的建立方法、目标跟踪算法的选择及目标跟踪的实现过程。在给出理论分析的同时,进一步通过计算机仿真结果证明了所给方法的正确性。最后给出结论与展望,指出该方法同样适用于双基地天基雷达体制及快速响应系统。

Space based radar,which is located on the satellite platform and is used to detect and track the airborne moving targets,is a kind of new radar system.In the condition of tracking satellites frequent alternation,the research on target track technology has important significance for the reality of space based radar system track performance.For the special target track issue in space based radar,and,based on the circular earth model assumption,the corresponding target track implementation method is given in this paper.The method includes the distinguish rules of the track platforms alternation,the builds of target state equation and measurement equation,the selection of target track algorithms and the implementation process of target track.Firstly the theoretical analysis is given.Then the validity of the given method is proven by the computer simulation results.Finally the conclusion and the further research focus are described,which indicate that the given method can be also applied in the bistatic space based radar system and the operational response system.