Abstract:本文提出了一种64×4扫描型红外焦平面读出电路.电路采用0.5 μm标准CMOS工艺.工作电压为5V.本设计在列读出级采用了降低寄生电容影响的设计,以降低电路输出相对无寄生电容设计输出值的偏差,提高各通道的一致性.在对具有4级TDI、微扫描步长为探测器中心间距1/3的读出电路列暂存级进行的仿真中,相对于改进前的普通电路结构,本文提出的新型电路结构与设计理想值之间的偏差降为原来的10%.

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Abstract:一、空间低温系统Ⅰ 1.关于詹姆斯·韦布空间望远镜和近红外摄像机的作用的综述(M.J.Rieke等,美国亚里桑那大学斯图尔特天文台)

Abstract:本文提出了一种64×4扫描型红外焦平面读出电路。电路采用0．5μm标准CMOS工艺。工作电压为5V。本设计在列读出级采用了降低寄生电容影响的设计,以降低电路输出相对无寄生电容设计输出值的偏差,提高各通道的一致性。在对具有4级TDI、微扫描步长为探测器中心间距1/3的读出电路列暂存级进行的仿真中,相对于改进前的普通电路结构,本文提出的新型电路结构与设计理想值之间的偏差降为原来的10%。

Abstract:With the unceasing development of the space primary mirrors used in optical systems are in urgent need detection technology, the large-diameter To meet the challenge in the design of large-diameter primary mirrors, several different light weight schemes of large-diameter primary mirrors are compared by using the finite element method and an optimum scheme is selected among them. Thus, the solid foundation is laid for the future practical engineering application.

Abstract:A multi-functional semiconductor photoelectric property test circuit is designed. With the aid of an infrared spectrometer, it can be used to test the photocurrent in the corresponding waveband. Because an AC signal generator module is added in this circuit, it can also be used to test the modulated reflective spectrum of the weak electric field in semiconductor. So, it is of great value to application. Besides a low noise and highly stable electric test condition can be provided for the semiconductor samples, a user-friendly interface which can be used to control and monitor the test condition in real time is provided. The hardware structure of each module of this design is presented and two main chips and their interface circuits for single-chip processors are described in detail.

Abstract:Jenoptik激光光学系统公司推出一种名为IR-TCM640的红外摄像机，该摄像机采用640x480元的非致冷式红外微测辐射热计列阵，其工作波段为7．5μm～14Aμm，帧速率可高达60Hz。这种摄像机实时记录目标的图像序列并把它们输出给一个外部处理系统。摄像机配有各种接口，因此适合多种应用，其中包括温度检测、机器视觉、特征监视、航空摄影和安全监控，并可装入空间系统和军用仪器设备。

Abstract:A trap optical detector has the advantages of enhancing a response signal and reducing the reflectance of the measured signal. So, it has found more applications over the past 20 years. In this paper, the theoretical consideration of the polarization removement in this frame design is explained and then the design steps of an InGaAs photoelectric detector frame which are also useful for a silicon photoelectric detector are presented in detail. The photographs of the frame are given .

Abstract:The principle of laser beam expasion is presented and the expanding rule of a Guass beam through a telescope system is explained. After the characteristics of several different laser beam expanding telescope systems are analyzed, the Cassegrain system is selected to meet the design requirement of an intensive pulsed laser transmitter system. The design result has shown that this optical design can not only meet the requirement of collimation, but also has a tunability for the beam width at a certain distance.

Abstract:An algorithm for recognizing and tracking the important parts of an aircraft is proposed according to the fact that the shape of an aircraft can be recognized under the complicated weather condition. The algorithm is based on the geometrical features of an aircraft and the mathematical morphology. It can recognize the important parts of an aircraft easyly, quickly and effectively, acquire the tracking template in images automatically and implement stable tracking of the important parts of the aircraft through a correlated match algorithm. The particular use steps of the algorithm are given. The experiment result has shown that this algorithm is effective.

Abstract:介绍了一种精确的逐线积分痕量气体吸收模型,该模型适用于中红外波段大气环境中痕量气体和污染气体检测的理论研究和工程应用.该模型利用HITRAN光谱数据库,考虑了展宽、线翼截断、温度修正及光谱分辨率变化等情况,可以有效地模拟大气环境中多种气体的红外吸收特征.文中详细描述了模型的算法细节,并给出了模型计算的结果与傅里叶变换光谱仪(FTIR)实测数据的对比,还举例介绍了吸收模型在FTIR气体探测技术中的实际应用,并使用该模型对测量的红外傅里叶变换光谱进行了定量分析,模拟了计算校准谱,并与实测光谱进行了非线性最小二

Abstract:GPS伪卫星是模拟GPS卫星信号的地面发射设备.其终端接收设备的射频前端将天线接收到的伪卫星信号变换为中频信号,再经模拟数字转换,便可得捕获的原始信号.采用专用集成电路设计的GPS接收机极大地限制了用户对原始信号的性能分析和新算法的开发,而基于FPGA DSP架构的设计能提高研究的自由度.本文先对GPS伪卫星信号的形成和接收机的结构作扼要介绍,再对伪卫星信号的搜索算法和捕获性能做分析,并通过频域FFT实现仿真.结论表明,通过仿真技术能有效地复现出了捕获的GPS伪卫星信号.

Abstract:本文基于正交投影的正交校正算法(OSC),建立了聚氯乙稀近红外光谱与其K值之间关系的数学模型,提出了用近红外漫反射光谱技术快速检测聚氯乙稀K值的新方法.研究结果表明,原始光谱经正交信号校正处理后,聚氯乙稀K值化学测定值与近红外预测值的相关系数和标准差为R=0.9825、RMSEP=0.5933,预测结果的相对误差在0.5%以内,且正交信号校正算法能取得比单纯使用偏最小二乘回归更好的预测效果,模型更为简单.为用近红外光谱快速测定聚氯乙稀的K值提供了一条新途径.

Abstract:美国海洋与大气管理局(NOAA)的极地轨道环境卫星(POES)系列自20世纪80年代初便已具备实用的环境遥感能力.二十多年来,该卫星系列的仪器载荷虽然有所改变,但其仪器的基本组合及其传播的数据流基本上保持未变.在今后的5年中,通过与欧洲气象卫星(EUMETSAT)组织的合作,目前的计划将在许多方面有所演变,该合作项目名为初始联合极轨系统(IJPS).最后,在国家极轨环境卫星系统(NPOESS)中,目前的系统将为新一代的宇宙飞船和仪器所取代.这样做虽然会增加对空间、光谱和时间的覆盖,但也会使那些通过直接广播