Modeling and simulation of acquisition probability of infrared imaging missile with human-in-the-loop
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摘要: 针对人在回路的导弹搜捕概率计算问题，通过分析人在回路特点、红外成像导弹末端捕控的实际过程，建立了红外成像瞬时航向视场、纵向视场计算模型，研究了导引头最大搜索扇面、目标区边界制约下的转侧搜扫条件，给出了综合距离与方位约束的发现目标判据模型。根据计算流程，仿真分析了导弹进入航向、开机距离、目标区边长等因素对搜捕概率的影响。结果显示，导弹从目标区对角线方向进入时的搜捕概率比最低值高出21%；最佳开机距离因目标区边长而异，边长小于7 km可使发现概率大于0.85；增强红外成像导引头作用距离、提高操作员转动光轴的速率均能极大提高搜捕概率。Abstract: Aiming at acquisition probability with human in the loop, the terminal searching process of infrared imaging missile and the features of human-in-the-loop seeker were analyzed. The calculation models were built for the horizontal and longitudinal instantaneous field of infrared imaging view. The condition turning to another side search was investigated, including excessing the maximum search sector and over boundary of target area. The criterion of target discovery was presented, which integrated distance constraint and azimuth constraint. According to flow process, the factors which influenced acquisition probability was simulated, such as missile course, start searching distance and length of target area side and so on. Results show that acquisition probability excesses the minimum value 21% when searching along diagonal line of target area; the optimum start searching distance is different as the length of target area side changes, and if the length is less than 7 kilometer, the acquisition probability is greater than 0.85; improving the coverage of infrared imaging seeker or speeding up angular velocity of operator turning ray axis will increase acquisition probability.
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