Based on the firsthand observation information obtained from air observation , this paper gived a second extrapolation to aircraft possible flight path and made checks on targets relativity by the method of utility function overall evaluation , accomplished the data fusion of targets information , and resolved the problem of relating of air observation information fusion and flight path extrapolation 摘要在得到对空观察哨直接观测信息的基础上，对目标可能航向进行二次外推，并利用效用函数综合评估法对目标相关性进行检验，完成对目标信息的融合，解决了观察哨情报数据关联和航迹外推问题。
