机动对抗是空中目标反地空导弹射击的重要手段。如何确定地空导弹对机动目标的射击时机是一个复杂的问题。现有解决问题的方法主要是数学计算结合图上作业,其缺点是计算复杂,效率较低,应用不便。文中在研究空中目标的典型水平机动方式和两种作战模式下地空导弹对机动目标射击时机要求的基础上,提出了一种新的算法。这种算法通过平面栅格化、虚拟航迹、逐点判定、搜索平面、计算结果处理等5个步骤,能够解决地空导弹对机动目标射击时机的确定问题。仿真实验结果证明了算法的正确性和有效性。与数学计算结合图上作业的方法相比,搜索算法具有通用性、简便性和实用性的优点。

Maneuver countermeasure is an important means of aerial target against surface-to-air missile shooting. How to determine the shooting time of surface-to-air missile against maneuvering target is a complex problem. The existing method to solve the problem is a mathematical calculation method combined with graphic operation, but the method is very complex, inefficient and inconvenient. A new algorithm was proposed in this paper based on research of typical horizontal maneuvering method of aerial target and shooting time requirement of surface-to-air missile against maneuvering target in two kinds of operation mode. This search algorithm can solve the problem of calculating shooting time of surface-to-air missile against maneuvering target through five steps including rasterizing two-dimensional plane, virtually generating track, judging point by point, searching the two-dimensional plane and processing results. Simulation result shows correctness and effectiveness of the proposed algorithm. Compared with the mathematical calculation method combined with graphic operation, the search algorithm has advantage of versatility, simplicity and practicability.