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中文摘要：
在通信中断或目标坐标测定仪故障等情形下,应急射击方式高炮火控系统的重要补充手段。目前,适用于高炮数字化瞄准具应急射击方法有视在航路法、陀螺仿真法。针对视在航路法目标运动参数求取对测角信息过于敏感,以及陀螺仿真法假定目标作圆周运动的问题,提出了一种利用瞄准线角速度求取目标提前角,从而求得射击诸元的新方法（简称瞄准线法）,该方法能克服已有方法的不足。在分别描述3种诸元求解原理基础上,运用蒙特卡洛仿真,比较相同前提下3种方法的高炮命中概率,仿真结果显示瞄准线法的命中概率较已有方法的命中概率有显著提高。
英文摘要：
Considering communication interruption or target determinator fault,antiaircraft emergency shooting is an important supplement on fire control.Now,methods of observational trajectory and gyro simulation are applied to digital collimator.Considering that target movement parameters are too dependent on angle information with the method of observational trajectory,and target movement is supposed as circle movement with the method of gyro simulation,the paper presents a new method of solution for the fire equation,it uses line of sight to solve target advance angle.The idea can overcome the inadequacy of existing methods.Finally,hit probability of antiaircraft can be obtained by using Monte Carlo simulation.The simulation results show that the hit probability of new method is significantly higher than the probabilities of existing methods.
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