舰载激光武器毁伤评估仿真模型

Damage assessment simulation model for shipborne high-energy laser weapon

区别于传统舰炮,激光武器通过发射激光束对目标表面定点照射若干秒造成目标毁伤,是一个能量累积的过程。针对舰载激光武器打击空中目标,分析激光束指向过程,包括激光束指向高低角、方位角以及照射毁伤时间的确定。考虑观炮间隔和升沉运动影响,采用坐标转换和摇摆坐标变换的方法,在稳定舰艇坐标系下建立激光束指向模型;在指向模型基础上,计算照射目标点能量、毁伤阈值能量、毁伤时间和平均光斑面积并建立毁伤评估仿真模型。利用毁伤评估模型仿真结果,对指向过程中的各误差精度进行分析。

Different from traditional naval gun, high - energy laser weapon illuminates the target surface at a point for several seconds to make target damage. In fact, it,s a process of energy accumulation. To destroy aerial target, the process of laser pointing was analyzed, including calculation of elevation angle, azimuth angle of laser beam and killing time in ideal situation. Considering heave movement of navy vessel and the distance between sensor and laser weap-on, laser pointing model was established in stable coordinate system of navy vessel,by adopting method of coordinate transform and coordinate conversion under the influence of swaying navy vessel. On the basis of laser pointing model, energy of the laser,threshold damage energy,killing time and average facula area were calculated,and damage assess-ment simulation model was established. Error precisions in the process of laser pointing were analyzed according to simulation results.