轰炸光电瞄准模型建立

国内现役主战轰炸机均未配备光电瞄准系统,其轰瞄设备为纯光学目视老设备,夜间及复杂气象条件下无法观测目标,不能完成精确轰炸,需要配备光电瞄准系统。为解决轰炸光电瞄准模型这一目前轰炸光电瞄准系统实现过程中待研究的关键技术问题,本文通过航行法下瞄准任务分析、轰炸目标在水平坐标系下坐标的计算、侧向瞄准距和纵向瞄准距的计算、轰炸光电瞄准机理、飞控参数解算算法、瞄准数据流分析等研究,建立了基于测距法的轰炸光电瞄准模型,分析了模型误差,确立了瞄准诸元预告、开舱、投弹时间的解算算法。结果表明,瞄准模型能够稳定解算瞄准诸元,控制飞控、预告、投弹指令输出。     

轰炸光电瞄准主控计算机系统设计

我军现役主战轰炸机均未配备光电瞄准系统,其轰瞄设备为纯光学目视老设备,夜间及复杂气象条件下无法观测目标,不能完成精确轰炸,需要配备光电瞄准系统.主控计算机系统设计为目前轰炸光电瞄准系统实现过程中待研究的关键技术.针对主控计算机设计实现,本文围绕轰炸瞄准任务,充分考虑可靠性、体积、功耗、成本、重量等因素,通过对控制电子箱结构、功能需求和性能要求的研究,对轰炸光电瞄准主控计算机系统进行了总体设计,构建了基于ARM9处理器、VxWorks操作系统的主控计算机系统,完成了软硬件设计.设计断电延时电路确保了断电后转塔正常收起,采用CPLD实现了通信接口,提高了系统运行速度,减小了成本.     

光电跟瞄系统瞄准精度测试技术

为了提高多传感器光电跟瞄系统瞄准精度,提出了多传感器光电跟瞄系统瞄准精度测试的3种方法:像纸法、CCD法和靶标法。系统采用宽光谱大口径平行光管,结合光电跟瞄系统的激光、红外和电视分系统,实现激光与红外/电视瞄准线高精度测试。详细介绍了每种测试方法的工作原理和主要误差来源,建立了实验测试环境,分别用像纸法、CCD法和靶标法对同一光电跟瞄系统红外、电视、激光传感器的瞄准线之间的偏差进行了测试和误差分析。结果表明,靶标法测试误差源少,精度能够达到4″,适用于高精度光电跟瞄系统瞄准精度测试。     

空对地精确攻击瞄准光电转塔系统设计

某些现役轰炸机均未配备能够实现全天候精确轰炸的光电瞄准系统,其轰瞄设备为纯光学目视老设备,夜间及复杂气象条件下无法观测目标,不能完成精确轰炸。为实现空对地的全天候精确攻击瞄准,本文根据国内光电转塔技术研究现状,设计了集热像仪、可见光摄像机和激光测距机于一体,通过对作用距离和稳定精度的计算和仿真,确立了光学接口板、稳定平台及控制电子箱等分系统的设计方案,并对稳定精度进行了仿真测试及校验。结果表明,本文设计的光电转塔系统可以实现空对地全天候的精确攻击瞄准,能够满足夜间及复杂气象条件下观测目标的要求,可以在现役机型上得到实际应用。     

国外机载光电瞄准设备发展

对国外Star SAFIRE 380X瞄准系统、EOTS瞄准系统、LITENING瞄准系统等先进机载光电瞄准系统的现状及技术特点进行介绍,在此基础上分析先进光电瞄准系统的相关技术,并对未来机载光电瞄准技术的发展趋势进行展望.     

PSD光电自动瞄准系统

介绍了一种计算机控制的ＰＳＤ光电瞄准系统,分析了系统的组成、工作原理以及光电信号的处理方法。ＰＳＤ光电瞄准系统基本实现了导弹初始定向的自动化,其准直精度或方位偏差的测量精度可以达到２″,满足了系统的实际需要。最后阐述了瞄准系统的平台驱动电机的细分控制。     

机载光电瞄准系统的现状及发展

高技术战争及新型机载装备的发展,对军事侦察与监视的能力和水平提出了越来越高的要求,雷达探测受到了来自多方面的挑战,而光电探测由于它们某些优越的特性得到了长足的发展。给出了光电探测在航空火控系统中的应用现状,分析了航空光电瞄准系统的发展动向(分布孔径红外系统),从而为发展具有我国特色的新型光电瞄准系统提供可靠的理论依据。     

机载光电探测,跟踪,瞄准系统技术分析及发展研究

本文综合分析的军用机载光电探测、跟踪、瞄准系统的功能、作用、发展过程及国外研制情况，并结合国内的发展现状，提出了发展我国军用机载光电系统的建设。     

机载光电瞄准系统在惯导系统校正中的应用

提出了一种用机械光电瞄准系统校正飞机惯导系统的方案，讨论了校正实施可能遇到的难点并提出了解决办法。     

基于PXI的光电瞄准设备自动检测系统

光电瞄准自动检测系统是在PXI测试总线技术的基础上,有机地结合计算机技术和虚拟仪器测量技术,研制开发出的新一代检测系统。检测系统采用了PXI总线技术和规范的系统结构框架,通过选取NI公司的PXI-1010混合机箱、PXI-8187主控制器、SCXI-1130矩阵开关、SCXI-1167继电器驱动模块、PXI-6509数字I／O、PXI-6229数据采集、PXI-4070数字万用表、PXI-5122数字化仪功能模块以及EXC公司的DAS-429cPCI／Mx、Condor公司基于cPCI的MIL-STD-1553和DDC公司的SB．36200IX模块,并利用LabVIEW开发工具开发出检测系统,而且还解决了PXI模块硬件及驱动程序与被测产品匹配问题,实现了基于PXI虚拟仪器的软面板技术。该检测系统是根椐标准的数据采集——信号分析与处理——输出及显示的结构模型而建立的,实现了光电瞄准系统数据的实时采集、处理和显示。光电瞄准自动检测系统样机实现了产品的自动化检测,具有一定的技术先进性。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first