Abstract:

Abstract:采用溶胶-凝胶方法在玻璃基底上制备了TiO2纳米薄膜.X射线衍射分析表明薄膜为锐钛矿结构.通过椭偏仪测试,薄膜的总厚度为216.4nm,折射率为2.536.黑体实验表明,TiO2薄膜在800nm～1200nm波长区域内对红外线的吸收较好,且吸收率随着温度的升高而变大.红外光谱表明,TiO2薄膜在2400cm-1～4000cm-1波数范围内对红外线的吸收效果较好.

Abstract:The technique of image denoising is one essential part of image processing. Now, a series of relatively mature filter preprocessing techniques have been used in point target detection. In this paper, the preprocessing methods for infrared point target images are analyzed and then two algorithms for background suppression based on difference are given. Finally, these two methods for background suppression are analyzed and compared with each other according to the simulation result.

Abstract:这套系统基于一台全光纤迈克尔逊干涉仪.全文分析了传感器的结构和工作原理,设定了传感器的具体参数.为了拓宽传感器探测振动频率的范围,最后进行了实验和改进.试验结果表明,示波器显示的电路输出波形与振动源波形很一致,能够很好地反映70Hz～7kHz范围内的振动,系统的加速度相位灵敏度为2.457×104rad/g.

Abstract:In this paper, an image revolving adjusting assembly for a moderate resolution imaging spectrometer is designed, the system structure is modelled and analyzed with the finite element, the moving stability of the driving mechanism is tested and the factors which may have influence on the rotation precision of the moving parts in space remote sensors are discussed. This paper can be used for reference in the design of the moving parts for space remote sensors.

Abstract:由于激光诱导离解光谱技术(LIBS)具有快速、实时和可在线分析多种物质元素等诸多优点,它在同类元素探测方法中显示出了巨大的潜力和优越性.但LIBS的定量化问题仍然是目前LIBS发展中的难点问题.本文旨在探讨激光诱导离解光谱技术的几种定量化反演方法,并进行深入的类比分析,为其在各领域中的定量化应用提供一定的理论依据.

Abstract:本文对比了光纤通信系统中偏振光消光比特性参数的两种测量方法:旋转偏振器测量法和庞加莱球测量法.旋转偏振器法是通过用高速旋转的起偏器获取所需光功率来实现消光比的直接测量的;庞加莱球法则是根据偏振光的斯托克斯分量间接计算消光比的.前者的物理特性及原理直观,易于操作,但测量不稳定,且对传输波长有一定依赖性;后者物理特性相对抽象,系统相对复杂,但稳定性较高.

Abstract:根据气体在红外光谱区的吸收,可以采用红外光谱来检测气体的浓度.本文介绍了红外光谱技术在气体浓度检测方面的应用情况以及国外的研究进展.以甲烷和一氧化碳气体为例,描述了用红外半导体激光器或发光二极管结合红外光谱技术实现的气体探测系统.最后介绍了几种气体传感系统的实例.

Abstract:据http://esto.nasa.gov/网站报道,由美国宇航局领导的一个研究小组研制的一种量子阱红外光电探测器现在已能在一个"颜色"或波长范围内看到不可见的红外光.这是迄今为止世界上能在一个大的波长范围内敏感到红外辐射的最大的红外探测器.

Abstract:In this paper, the hardware joints between infrared remote devices and single-chip computers and those between single-chip computers and electric motors are presented. Several common software decoding methods and their principle are given. First, the software decoding program is used to detect the waveform of the pulse emitted by the infrared remote device so as to obtain signal codes. Then, the rotation of the electric motor is controlled according to the obtained different signals. Thus, the evidences are provided for the software decoding.

Abstract:1 引言 高性能传感器的应用需要多色红外焦平面.高性能传感器需要的是能在中波红外/长波红外和长波红外/甚长波红外波段中覆盖人们所关心的各种波长的多色焦平面列阵.HgCDTe探测器工艺在这方面已获得了显著的进步.

Abstract:一、日本的飞行任务 1.日本地球观测计划综述(Haruhisa Shimoda) 2.相控阵型L波段合成孔径雷达(PALSAR)的初始定标和验证结果(Masanobu Shimada等) 3.先进陆地观测卫星(ALOS)光学传感器定标及立体测绘用全色遥感仪器数字表面模型验证的初步结果(Takeo Tadono等)