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雷达具有测距精度比测角精度高的特点,充分利用这种测量的不对称性,提出一种基于距离信息修正的自由段弹道预测法.该方法是在雷达观测的弹道导弹自由段运动数据的基础上,采用滑动窗口中点平滑法处理观测数据,再次利用距离信息对轨道根数进行动态微分修正,提高观测数据的利用率和弹道预测的精度.仿真试验表明,该方法明显优于基本椭圆弹道法,大大提高了弹道预测的精度.
Radar has the characteristics of higher accuracy than the angle measurement, and make full use of the asymmetry of the measurement, a free-range trajectory prediction method based on the distance information correction is proposed. The method is based on the data of the free movement of the ballistic missile , The sliding window midpoint smoothing method is used to process the observed data and the distance information is used again to dynamically differentiate the number of tracks to improve the utilization of the observed data and the accuracy of trajectory prediction.The simulation results show that this method is obviously better than the basic Ellipse ballistic method, greatly improving the accuracy of ballistic prediction.