To achieve the real-time detecting and localization of hypervelocity impact events, a monitoring and localization system was designed based on fiber Bragg grating (FBG) sensor network. First, the simulation model was built to study the damage evolution and wave propagation process. Subsequently, based on the response mechanism of FBG to strain, the corresponding high frequency demodulation system was designed. Furthermore, a hypervelocity impact experiment was performed to verify the effectiveness of the designed system. Finally, combined with the diamond sensor array localization algorithm, the accurate position of hypervelocity impact source can be achieved.

对日盲紫外预警和红外预警的相关发展现状进行了综述。针对当前对临近空间导弹预警载荷的应用需求,提出了一种覆盖日盲紫外(250~280 nm)、中波红外(3 000~5 000 nm)双波段预警系统。系统采用双波段实现对导弹等**目标的探测和预警,可以有效的减少虚警率。该光学系统利用一个离轴三反系统作为主光学系统,利用分束器分别实现对两个波段的分光。根据两个波段光学系统所使用的探测器以及相应的应用需求,完成了对两个波段光学系统结构计算与光学设计工作。设计完成之后,两个波段光学系统的MTF在奈奎斯特频率分别为: 日盲紫外MTF＞0.8@39 lp/mm,中波红外MTF＞0.8@17 lp/mm,两个光学系统最大RMS光斑直径小于一个探测器的尺寸,单个像元能量集中度大于80%。