Abstract:

Abstract:随着红外探测技术和红外制导技术的迅速发展,水面舰艇面临越来越严重的红外威胁.本文在概述红外隐身技术原理的基础上,通过对水面舰艇红外隐身技术发展现状的分析,介绍了水面舰艇红外隐身技术所采取的措施,最后对水面舰艇红外隐身技术的发展趋势进行了预测.

Abstract:A multispectral imager is an effective observation instrument. In this paper, the basic structure and principle of the liquid crystal tunable filter used as a dispersive device are presented and the applications of the liquid crystal tunable filters in multispectral imagers are specially described.

Abstract:A novel image fusion scheme based on wavelet decomposition is presented. Compared with the traditional pyramid decomposition, the fusion scheme based on wavelet is more capable to retain and pick up image information and has a greater application potential .

Abstract:提出了一种基于CPCI总线、采用FPGA DSP架构的高性能红外图像信号实时处理系统.在该系统中,FPGA芯片XC2VP20-5FG676负责控制采样并作为红外图像信号的预处理单元,DSP芯片TMS320C6416T构成高速处理单元,PCI接口芯片PCI9054实现标准的32位PCI总线接口,从而构成了一个可用于红外信号采集处理的通用标准化硬件平台.该方案充分结合了不同处理器件的优点,具有处理能力强、数据传输速度快、接口可靠方便和编程灵活等特点.实验证明,系统能够满足红外图像实时采集处理的要求.

Abstract:由临界成像技术公司生产、装在防水防尘封壳里的1-500长波红外热成像摄像机适合在工业环境中执行精确的辐射测量。该摄像机采用可互换的f／1．4光具，因此具有从30°至9．5°的横向视场。采用的320×240元非致冷防辐射微测辐射热计列阵使得摄像机能敏感0．08℃的温差。图像的高速捕获、下载以及指令都是通过USB、RS-232、以太网或者Firewire接口执行的。

Abstract:本文用同一方法在相同条件下,分别以红酵母菌株A、B、C、D、F、R发酵所得的细胞壁制备了几丁质,测定了各类菌株的几丁质含量,并用红外光谱分析法对其脱乙酰几丁质(壳聚糖)进行了比较研究.结果表明,几丁质在红酵母细胞壁中的含量比较低,不同种属红酵母菌株细胞壁中的几丁质含量差异较大.红酵母菌株D细胞壁中的几丁质含量为2.34±0.17%(w/w,干细胞),属最低,红酵母菌株C细胞壁中的几丁质含量为5.28±0.22%(w/w,干细胞),属最高.其六种壳聚糖的红外光谱基本相似,脱乙酰度相近(76%～80%),只存

Abstract:According to the characteristics of antiaircraft artillerry fire-control radars, their infrared radiation features are analyzed. An infrared guard scheme for fire-control radars is studied and a special way to implement infrared guard by using infrared stealth and infrared flare is proposed.

Abstract:In this paper, the infrared LED is described in brief, two kinds of thermal detectors and two kinds of photodetectors are presented, their advantages, disadvantages and basic measurement formulas are indicated and the methods and formulas for measuring the radiation intensity of infrared LEDs are explained in detail. Finally, three suggestions are given for the current measurement standard of infrared LEDs. It is particularlly noted that the measurement of the radiation intensity of LEDs by using a thermal detector is firstly proposed in the LED industry.

Abstract:On the basis of the physical model of a four-level neodymium-doped phosphate waveguide amplifier, the rate - transfer equation of a neodymium-doped phosphate waveguide amplifier in which the pump light at the wavelength of 802nm is used to amplify the signals at the wavelength of 1060nm is studied by using an overlap integral method. The plot of the gain against the waveguide doping concentration, the pump power and the waveguide length are obtained through numerical simulation.

Abstract:使用多个焦平面列阵、滤光片、光束分裂片和致冷电路的传统方法使系统的设计变得复杂化,系统的可靠性也受到影响,同时也为图像在空间和时间上的配准带来了困难.单个多色全分辨率焦平面列阵将大大提高系统在更远距离上的光谱分辨能力.在集成的多色红外焦平面列阵中,单个像元位置敏感两个(或三个)分开的红外波段.在基于空间和地面的各种目标捕获和信号特征识别应用中,集成的多色红外焦平面列阵将成为下一代技术.本文就这种技术的发展和状况进行述评,同时讨论今后的规划以及在发展过程中所遇到的问题.

Abstract:一、斯堪的纳维亚的电光与红外系统 1.瑞典的红外与电/光系统研究(I.Renhorn) 2.用于高温、弱背景应用场合的量子阱红外光电探测器性能的优化(Andrey Gromov等) 3.MOMS:多光学传感器地雷探测系统:项目综述(Anna Linderhed等) 4.紧凑型多通道光学傅里叶光谱仪(Anatoliy Manuilskiy等)