一种炮弹射程偏差预测方法的精度分析

射程预测精度是衡量弹道辨识系统的重要指标,直接影响弹道修正引信的工作性能。基于比较名义弹道与实际弹道在上升初始段的水平距离来实现对弹丸射程偏差的预测算法,为了评估其辨识精度并为辨识系统设计提供理论依据,本文提出一种利用Matlab/Simulink模块对其进行建模仿真的方法。建立弹道数学模型,获取仿真初始参数及随机测量误差,运用Simulink模块生成仿真模型。仿真结果表明该射程预测方法预测误差为0.838%,可以作为弹道修正引信的弹道辨识方法。

Accuracy analysis of prediction method of projectile range deviation

The accuracy of projectile range prediction is an important indicator of trajectory identification system capacity, which influences the performance of the trajectory correction fuse directly. The range deviation is predicted by comparing the horizontal distances between its active trajectory and nominal trajectory on the up leg. Aiming at this algorithm a simulation based on Matlab/Simulink software is presented to evaluate the method accuracy and be provided as theoretical basis for the design of identification system. A mathematical model of trajectory is established, and a model of actual trajectory in Simulink is given according to calculating initial parameters. The result of simulation shows that the prediction error of this prediction method is 0.838% and the method can be used in trajectory correction fuse.