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高速固定翼飞机导弹逼近紫外告警的战术应用 总被引:1,自引:0,他引:1
紫外告警设备在作战飞机的应用正不断取得新进展.从介绍导弹逼近告警的军事需求和应用背景入手,根据威胁对象、平台交战模式的特点,确立了系统的战术任务定位,系统阐述了导弹逼近告警战术应用的主要性能,并在分析紫外告警性能功能基础上,论述了紫外告警在高速固定翼飞机应用的实用性和有效性及今后的发展。 相似文献
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导弹逼近紫外告警技术的发展 总被引:2,自引:0,他引:2
导弹逼近紫外告警技术是利用“太阳光谱盲区”的紫外波段来控制导弹的火焰与尾焰,在微弱背景下探测出导弹。它具有隐蔽性好、虚警率低、不需低温冷却、凝视和告警器体积小、质量轻等优点。本文对国外导弹逼近紫外告警技术的最新进展作以综述。 相似文献
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紫外型导弹逼近告警系统的发展 总被引:3,自引:0,他引:3
付伟 《光电子技术与信息》1997,10(2):1-5
紫外型导弹逼近告警系统由于有独特的优点,因而得到迅速发展,目前已为最实用的导弹逼近造系统之一。本文概述了第一代,第二代紫外型导弹逼近警系统的研制概况和发展前景。 相似文献
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提出了一种新型的应用于紫外检测的双通道实时视频图像处理系统。本系统先通过分光、图像增强和光谱转换实现紫外信号的采集,再应用高集成度的视频编解码器和专门面向视频信号处理的数字信号处理器,将紫外信号和可见光背景信号转化为数字信号,并进行融合处理以实现紫外信号的检测与定位。此系统在电力系统电晕检测及森林火灾等紫外信号检测的场合有远大的应用前景。 相似文献
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The 1/f noise and shot noise studies were carried out on molecular beam epitaxy (MBE)-grown ZnS0.85Se0.15 and Zn0.43Mg0.57S ultraviolet (UV) detectors packaged in surface mount lead frames. Three ZnS0.85Se0.15 detectors with different thicknesses of the active layer and the top electrode pad were used. The highest onset of reverse bias for the appearance of 1/f noise is ?27.5 V, and the highest dark resistances at zero bias is R0=3.7×1013 Θ. The observed difference in their noise performance implies that the increase of the thicknesses of both the active layer and the top electrode pad can significantly lower the noise levels and in turn lead to higher detectivity. The best detectivity achieved is 8.75×1013 cm Hz1/2 W?1 in a ZnS0.85Se0.15 detector with an active layer of 5000 Å and a top electrode pad of Cr (50 Å)/Au (8000 Å). The typical detectivity achieved on Zn0.43Mg0.57S devices that have an active layer thickness just exceeds the critical thickness of phase transition is 1.54×1012 cm Hz1/2 W?1. 相似文献
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Feng TU Xinwei QIAN Deming LIU Shuqiang ZHANG Jie LUO Tao DENG Chen YANG Jiangtao GUO 《中国光电子学前沿》2009,2(3)
A number of spectroscopic techniques make use of ultra violet (UV) absorbance and luminescence measurements to characterize materials, for use in medical/pharmaceutical applications, for forensic and sensor applications, and for remote detection or monitoring,especially for hazardous environments.Furthermore, many high-power applications in medicine and industry are looking forward to using UV wavelengths.The UV fiber's mechanical reliability has become one of the most crucial performances with longer length fiber being used.This paper reviews the researched evolvement of the normal single mode fiber's mechanical reliability.Based on the standard measure method of the normal fiber, the mechanical reliability of the UV fiber has been researched.The measurement results show the difference of mechanical reliability between the different doping composition UV fibers. 相似文献
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In this paper, we describe how UV absorption measurements can be used to measure the flow rates of metalorganic chemical vapor
deposition (MOCVD) reactants. This method utilizes the calculation of UV extinction coefficients by measuring the total pressure
and absorbance in the neat reactant system. The development of this quantitative reactant flow rate monitor allows for the
direct measurement of the efficiency of a reactant bubbler. We demonstrate bubbler efficiency results for TMGa, and then explain
some discrepancies found in the TMA1 system due to the monomer to dimer equilibrium. Also, the UV absorption spectra of metalorganic
and hydride MOCVD reactants over the wavelength range 185 to 400 nm are reported. 相似文献
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为了对导弹在飞行时产生强烈的紫外辐射进行模拟,对导弹紫外动态辐射特性行了分析,并对适合作为辐射源的人工紫外光源原理、特点与应用进行了描述与比较,最后对飞行特征几种控制方式与适用的光源进行阐述与比较。 相似文献