舰载直升机远程目标指示系统的误差分析

在目标指示系统的飞行试验中,我们面临如何能在评估其指标符合性的同时,评估目标指示系统的误差对其使用能力的影响问题。为研究目标指示系统精度与使用能力的评判方法,对目标指示误差与武器打击效果的关系进行分析,建立基于水面舰艇当前点攻击和预测点攻击方式下的目标指示系统误差模型,分析不同目标指示方式下的误差分布,将目标指示误差与武器捕获概率的关系转化为目标指示误差与导弹自控终点落入指定区域概率的关系。结果表明:两种攻击方式下的目标指示误差均服从二维正态分布,当目标指示误差增大时,武器捕获概率显著下降,若需保证武器攻击效果,则对应有目标指示误差的下限值,该下限值为舰载直升机远程目指系统飞行试验方法提供了参考。

Error analysis of remote target indication system for ship-based helicopter

In the flight test of target indication system, we are faced with the problem of how to evaluate the effect of the error of target indication system on its operational capability while evaluating its index conformance. In order to study the method of evaluating the precision and capability of target indication system, the relationship between target indication error and weapon strike effect is analyzed, and the error model of target indication system based on current point attack and predictive point attack mode of surface warship is established. The relationship between the target indication error and the weapon acquisition probability is transformed into the relationship between the target indication error and the probability of the missile terminal falling into the designated area. The results show that the target indication errors under the two attack modes obey the two-dimensional normal distribution. When the target indication errors increase, the probability of Weapon Acquisition decreases significantly. If the effect of weapon attack is to be guaranteed, the lower limit of target indication error is corresponded. The lower limit provides a reference for the flight test method of ship-based helicopter long-range target indication system