Abstract:

Abstract:The development of space infrared the cryogenic systems in two advanced infrared and their operation principles are summarized. space are pointed out and the research on them astronomy observation is expounded. The structures of astronomy satellites, SIRTF and ASTRO-F, are studied Some key techniques about helium refrigeration used in is forecasted.

Abstract:The virtual reality technology is used in the simulation of opto-electronic measures. An aero-plane opto-electronic countermeasure simulation system is constructed by using the simulation modeling software, Multigen Creator, and the scene management software, OpenGVS. Some key problems such as modeling of targets, choice of viewpoint, collision detection and explosion effectiveness which should be solved when using OpenGVS to develop the opto-electronic countermeasure software are presented. Finally, the interference of infrared interference bombs is evaluated according to the developed simulation platform.

Abstract:围绕如何提高战斗机使用红外制导空空导弹攻击敌方武装直升机的作战效能问题,首先介绍了两种典型的红外空空导弹,其次对影响红外空空导弹作战使用的主要条件进行了分析,然后对武装直升机发动机的红外辐射特性进行了分析研究.最后,通过近距空战实例分析,研究得出了某型战斗机对在战区内活动的敌方武装直升机所采取的"战区游弋"空战战术和相关机载武器的使用方案.

Abstract:用MATLAB对不同气象条件下我国各地区8μm～12μm波段的LOWTRAN大气透过率数据进行了拟合,并给出了相应的多项式拟合系数.计算表明,拟合效果相当好.这种拟合函数构造简单,使用方便,容易与各种软件平台集成.

Abstract:In order to solve the problem that the interpretation precision of infrared measurement images can not be detected, a precision detection method using simulation images is presented according to the principle of sub-pixel subdivision. The background of an infrared measurement image is simulated by using the random superimposition of typical targets. The position of the target is determined by using a full frame of image. The simulation of the infrared measurement image is achieved through the sub-pixel interpolation of the image and noise simulation. Finally, the detection of the interpretation precision of the infrared measurement image is achieved through the interpretation of the known target points.

Abstract:分析了导模-辐射模耦合理论和利用经塔米尔的传输回路方法论改造过的扰动理论进行解析的结果[1].根据上述理论对1.3μm GeSi/Si异质结波导光栅耦合器波导层的厚度,槽形、长度,宽度、周期、槽深等做了近似的设计.

Abstract:In this paper, the important role played by an infrared spectrometer in the kind identification of gemmology, the determination of optimal treatment and the distinguishment of natural gems from synthetic gems without prefabrication and abrasion is presented by way of example. By comparison, although the conventional identification of gem species is more easy and quick, it runs a certain risk. However, it is impossible to determine whether the gem is treated optimally and distinguish the natural gem from the synthetic gem by using the KBr pellet. The conventional application of infrared spectra is of practical significance to the discussion of the macroscopic structure of crystal, the interaction of polycrystalline aggregate and the configuration and O-H content in mineral and rock. The infrared spectral characterization of the crystallization of SiO2 gems is given.

Abstract:Wavelength demodulation is the key technology of fiber Bragg grating sensor and is also the key of the commercialization of such devices. In this paper, the unique superiority of the fiber Bragg grating as a sensor is analyzed. The basic principle of fiber Bragg grating sensing is given. The wavelength demodulation methods such as matching demodulation, tunable laser, interference demodulation and filtering demodulation used at home and abroad in recent years are presented in detail. The corresponding system design schemes are given and their advantages and disadvantages are discussed. The application examples of fiber Bragg grating sensors in the health inspection of large buildings such as bridges and dams are described. Finally, the challenges needed to be solved in the further commercialization of fiber grating sensors are discussed and the prospect of fiber grating sensors is given.

Abstract:本文介绍了PCI总线和MIL-STD-1553B总线转换的实现方法.该设计使用PLX公司的PCI9052和DDC公司的1553B协议芯片BU-61580,通过ALTERA公司的FPGA芯片EPlK100进行PCI协议和1553B协议的转换.使用Visual C 完成对PCI的读写操作,进而控制61580芯片实现1553B总线的数据传输.最后成功实现了用计算机通过PCI卡完成1553B总线控制器(BC端)的功能,并通过了系统测试.