Abstract: The guidance accuracy of precision guided weapons will decrease when the guidance,navigation and control systems are damaged or disturbed by the directed energy weapon.However,the precision guided weapons may still pose a threat to the target.The guidance precision variation of precision guided weapons before and after seeker failure is analyzed by trajectory simulation.Then,the deviation criterion for precision guided weapons is proposed combined with risk-estimate distances of the US army.The criterion can quantitatively evaluate the combat effectiveness of anti-precision guidance weapons operation with directed energy.

Key words: directed energy, precision guided weapon, evaluation of combat effectiveness, risk-estimate distances, trajectory simulation

摘要： 精确制导武器的制导、导航及控制系统受到定向能毁伤或扰乱后,制导精度虽然下降,但仍然可能对打击目标构成一定威胁。采用弹道仿真分析了导引头失效前后的精确制导武器制导精度的变化,结合美军空地武器风险评估距离(risk-estimate distances)提出对精确制导武器的“软杀伤”准则,可量化评估定向能反精确制导武器的作战效果。

关键词: 定向能, 精确制导武器, 作战效果评估, 风险评估距离, 弹道仿真