基于自适应步长的空空导弹攻击区解算方法

Adaptive Step-Size Based Calculation of Air-to-Air Missile Launch Envelopes

针对传统空空导弹攻击区解算过程中解算精度和速度的矛盾,提出了基于自适应步长黄金分割法的边界搜索方法,在建立导弹和目标三自由度弹道模型的基础上,引入脱靶量为自适应变量,对传统黄金分割法步长进行改进。仿真结果表明,该算法可在部分提高攻击区解算速度的前提下,较大程度提升计算精度,满足机载火控系统攻击区解算的实时性和精度要求。

Aimed at the contradiction between the accuracy and speed of the traditional air-to-air missile attack area in calculation process,a boundary search algorithm based on adaptive step-size golden section method is proposed.The three degree-of-freedom ballistic models are established for the missile and the target.Then,the miss distance is used as the adaptive variable to improve the size of the traditional golden section method.Simulation results show that the algorithm can improve the attack area calculation accuracy to a large extent under the premise of increasing calculation speed.The method can meet the requirements of airborne fire control system on real-time performance and accuracy for the attack area calculation.