红外焦平面探测器的盲元对跟踪精度的影响

Influence of Blind Pixel of IRFPA on System Tracking Precision

由于加工材料和制造工艺等因素的影响,实际使用的红外焦平面阵列探测器存在盲元。盲元将造成图像质量下降,图像灰度分布失真,进而影响红外系统的跟踪精度。简单介绍了质心和形心的计算方法,通过仿真,分析了不同情况下的盲元分布对点目标、斑点目标、面目标跟踪精度的影响,为减小导引头的跟踪误差提供了理论参考。

Due to the influ IRFPA, blind pixels exist in th the distribution of image gray d introduction to the algorithm of ence of factors such as machining material and manufacturing process in e actual use of the detector. Blind pixels will cause image degradation and istortion, which affects the tracking precision of infrared system. A brief the centroid and center is introduced here, and the blind pixels distribution under different conditions which affect the tracking precision of point, spot and surface target is analyzed by simulation, which provides the theoretical basis to reduce the tracking error of seeker.