基于预测校正法的迫击炮外弹道模型解算方法

An algorithm of calculating mortar exterior ballistic modelbased on prediction correction method

针对目前迫击炮外弹道仿真研究中精度难以提升的问题,提出一种基于预测校正法的迫击炮外弹道模型解算方法。以解算方法为研究对象,对常规外弹道模型进行改进和细化,构建更为精确的迫击炮外弹道模型;将线性多步法中的显式和隐式方法相结合,设计一种实用的预测校正解算方法用于弹道解算,并将解算结果与射表进行对比。研究结果表明:与常规的龙格库塔法和线性多步法相比,设计的预测校正法具备较高的精确度,同时又能保持时间上的可接受性。研究结果直观揭示了几种弹道解算方法的优劣,能够有效指导迫击炮外弹道模型解算方法的选择。

Aiming at the problem that the accuracy is difficult to improve in the current mortar exterior ballistic simulation research,a computing method was proposed.Computing method was regarded as research object and the conventional exterior ballistic model was optimized and refined to build a more accurate mortar exterior ballistic model.The explicit and implicit algorithm in the linear multistep algorithms were combined to design a practical prediction correction algorithm.This algorithm was applied to calculate ballistic model,and the results were compared with the firing table.The results show that compared with the conventional Runge Kutta algorithm and the linear multistep algorithm,the prediction correction algorithm is more accurate and timesaving.The research results directly reveal the advantages and disadvantages of several trajectory calculation algorithm,which can effectively guide the selection of algorithms for ballistic model calculation.