现代靶场光电测量工程的发展现状

１引言靶场光测是靶场利用光学测量设备对飞行目标进行摄影、测量和采集信息以完成目标轨迹和实现记录的简称。光测设备———以光电经纬仪为主要代表，是靶场应用最早的测量设备，也是靶场最基本的测量手段之一。１９４０年，德国研制了第一台靶场用光电经纬仪，６０年代后，随着激光技术和光电子技术、计算机技术的发展，光测设备不断更新换代，现已成为具有多功能、定位精度高、响应速度快、实时性强的综合性测量系统。２国内外光测设备的最新发展１９４０年，第一台电影经纬仪正式装备靶场写下了靶场光测与弹道测量史的第一章。从那时至…     

弹道测量雷达在常规靶场中的应用与发展

本文着重论述现阶段弹道测量雷达在常规兵器试验靶场中的应用,以及弹道测量雷达的发展方向,并介绍了国外常规兵器试验靶场正在使用的部分弹道测量雷达的情况。     

终点弹道的测试手段和方法研究(Ⅰ) 终点弹道的电测方法研究

本文主要介绍了近年来国内外在终点弹道测试方面所采用的电测方法,包括采用声学原理、无线电波和雷达等电学手段对弹丸落点、遭遇点、炸点的测量。着重介绍了国外常规武器靶场测量弹丸落点的几种有代表性的雷达,对其进行了比较,探讨了靶场测试设备的发展方向。     

导弹靶场激光雷达

靶场试验是发展导弹并不断取得完善的一个极其重要的组成部分。导弹飞行弹道的测量是靶场观测的主要项目之一。导弹外弹道测量的任务是观测自发射点到弹着点飞行期间导弹的位置、速度和加速度等随时间的变化。国外在五十年代末期到六十年代初装备靶场的各种外弹道测量没备,包括各种光学摄影仪和无线电测量设备等,基本上满足了     

常规靶场内外弹道测量(Ⅰ) 外弹道测速雷达

本文简要论还了国内外弹道测量的特点、技术水平和总的发展趋势。常规靶场是试验、鉴定常规武器的场所,武器及其弹药的性能指标是否符合国家标准或者是否符合用户-生产研制合同所规定的指标,都必须经过靶场的鉴定,才能交于用户使用。武器也在研制、生产和使用过程中不断发展、更新换代。新的发明创造都必须进行试验,通过试验,多次修改指标,使之不断完善、提高、达到新的水平。内弹道测量和外弹道测量,是靶场保证上述任务实现的重要手段,内弹道和外弹道测量的方法和设备都是保证完成试验、鉴定任务的重要工具。靶场测量设备和方法的现代化才能保证武器和弹药的质量和现代化。所以必须保证靶场测量设备在任何时候都处于先进水平,才能保证武器和弹药的高质鉴定和推进其快速地更新换代,缩短研制周期,才能保证新的发明创造提早问世和装备部队。由于靶场测量设备是武器及其弹药现代化的重要环节,所以世界各国近年来都非常重视常规靶场测量设备的研制和更新。本文从整个常规靶场测量技术出发,简要评述国内外弹道测量设备的特点、技术水平和总的发展趋势。     

常规靶场内外弹道测量(Ⅰ) 光学测量技术和设备

本文简要论还了国内外弹道测量的特点、技术水平和总的发展趋势。常规靶场是试验、鉴定常规武器的场所,武器及其弹药的性能指标是否符合国家标准或者是否符合用户—生产研制合同所规定的指标,都必须经过靶场的鉴定,才能交于用户使用。武器也在研制、生产和使用过程中不断发展、更新换代。新的发明创造都必须进行试验,通过试验,多次修改指标,使之不断完善、提高、达到新的水平。内弹道测量和外弹道测量,是靶场保证上述任务实现的重要手段,内弹道和外弹道测量的方法和设备都是保证完成试验、鉴定任务的重要工具。靶场测量设备和方法的现代化才能保证武器和弹药的质量和现代化。所以必须保证靶场测量设备在任何时候都处于先进水平,才能保证武器和弹药的高质鉴定和推进其快速地更新换代,缩短研制周期,才能保证新的发明创造提早问世和装备部队。由于靶场测量设备是武器及其弹药现代化的重要环节,所以世界各国近年来都非常重视常规靶场测量设备的研制和更新。本文从整个常规靶场测量技术出发,简要评述国内外弹道测量设备的特点、技术水平和总的发展趋势。     

常规靶场内外弹道测量(Ⅰ) 外弹道单脉冲跟踪测量雷达

本文简要论还了国内外弹道测量的特点、技术水平和总的发展趋势。常规靶场是试验、鉴定常规武器的场所,武器及其弹药的性能指标是否符合国家标准或者是否符合用户-生产研制合同所规定的指标,都必须经过靶场的鉴定,才能交于用户使用。武器也在研制、生产和使用过程中不断发展、更新换代。新的发明创造都必须进行试验,通过试验,多次修改指标,使之不断完善、提高、达到新的水平。内弹道测量和外弹道测量,是靶场保证上述任务实现的重要手段,内弹道和外弹道测量的方法和设备都是保证完成试验、鉴定任务的重要工具。靶场测量设备和方法的现代化才能保证武器和弹药的质量和现代化。所以必须保证靶场测量设备在任何时候都处于先进水平,才能保证武器和弹药的高质鉴定和推进其快速地更新换代,缩短研制周期,才能保证新的发明创造提早问世和装备部队。由于靶场测量设备是武器及其弹药现代化的重要环节,所以世界各国近年来都非常重视常规靶场测量设备的研制和更新。本文从整个常规靶场测量技术出发,简要评述国内外弹道测量设备的特点、技术水平和总的发展趋势。     

常规靶场内外弹道测量(Ⅰ) 多目标测量雷达

本文简要论还了国内外弹道测量的特点、技术水平和总的发展趋势。常规靶场是试验、鉴定常规武器的场所,武器及其弹药的性能指标是否符合国家标准或者是否符合用户-生产研制合同所规定的指标,都必须经过靶场的鉴定,才能交于用户使用。武器也在研制、生产和使用过程中不断发展、更新换代。新的发明创造都必须进行试验,通过试验,多次修改指标,使之不断完善、提高、达到新的水平。内弹道测量和外弹道测量,是靶场保证上述任务实现的重要手段,内弹道和外弹道测量的方法和设备都是保证完成试验、鉴定任务的重要工具。靶场测量设备和方法的现代化才能保证武器和弹药的质量和现代化。所以必须保证靶场测量设备在任何时候都处于先进水平,才能保证武器和弹药的高质鉴定和推进其快速地更新换代,缩短研制周期,才能保证新的发明创造提早问世和装备部队。由于靶场测量设备是武器及其弹药现代化的重要环节,所以世界各国近年来都非常重视常规靶场测量设备的研制和更新。本文从整个常规靶场测量技术出发,简要评述国内外弹道测量设备的特点、技术水平和总的发展趋势。     

我国靶场应用的激光测距仪

我国自行研制的各种型号的脉冲式激光测距仪,在七十年代初,就已作为测量设备的“新成员”出现在各军事靶场中,使其成为兼有光学和激光双重特性的新型测量设备。由于其跟踪性能好,测角、测距精度高,成为靶场中担负火箭初始段、主动段和载入段外弹道测量的理想设备。一、靶场中现用的激光测距仪目前,靶场飞行器首末段常用的激光测距仪,其工作物质多为Nd:YAG晶体,激光谐振腔可分为平-平腔和平-凹腔两种.激光波长为     

美国导弹再入段测量的光测设备及其发展趋势

再入段测量手段很多,可借助于光测设备或电子测量设备,二者之间各有所长,互为补充。尤其光测设备具有特殊的优越性,它能取得图象,形象地记录空中目标的姿态、级间分离、遭遇情况等飞行事件;测量精度高,并能测量飞行目标在弹道各段的辐射特性参数;抗干扰能力强,不受地面杂波和再入黑障的影响;稳定可靠,设备简单等;使电子测量设备望尘莫及,是再入段测量中必不可少的有效工具。美国靶场无论从规模大小还是技术先进性方面,都具有相当的代表性。现就美国两个主要再入靶场的光测设备作一介绍。     

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.     

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.     

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.     

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.     

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     

JOURNAL OF ELECTRONICS(CHINA)

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NOTICE OF CHANGING JOURNAL OF ELECTRONICS （CHINA） TO MICROSYSTEMS ＆ NANOENGINEERING

正Journal of Electronics(China)(JE)was founded in 1984,sponsored by the Institute of Electronics,Chinese Academy of Sciences.JE is one of the first English academic journals in China in the field of Electronics and Information technology.The journal was published quarterly since it was launched in 1984 to 2003,then it is published bimonthly till now.During