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一、引言遥远的目标可当作点目标,而非天然的、由人工制作的目标(包括合作目标与非合作目标)也多半具有某种对称性。点目标或对称目标虽不是红外系统所感兴趣的目标的全部,但也构成了其中一大部分。多元红外系统,不论是扫描式的线列系统、或是凝视式的面阵系统(Staring),它们对目标探测或跟踪的位置精度是由单个元件所对应的瞬时视场来决定的,在一般情况下很难得到比该瞬时视场还要微小的细节(one sensor-one pixel)。当然,这只是在对信息作常规
I. INTRODUCTION Remote targets can be used as point targets, rather than natural and artificial targets (including cooperation targets and non-cooperation targets). Mostly, they also have some symmetry. Although point targets or symmetric targets are not all of the objects of interest to infrared systems, they also make up a large part of them. Multivariate infrared systems, whether they are scanning line arrays or gaze-type staring systems, determine the positional accuracy of a target’s detection or tracking as a function of the instantaneous field of view of a single element In cases where it is hard to get one sensor-one pixel more than the instantaneous field of view. Of course, this is only routine information