基于任务状态空间的战场电子对抗态势表示方法研究

分析了电子对抗作战任务,建立电子对抗任务控制点和任务状态空间的概念,提出以电子对抗任务状态空间来表示战场电子对抗态势,并对战场电子对抗态势的表示方法进行举例说明.     

电子对抗情报数据融合

本文主要阐述电子对抗情报数据融合的概念和作用。文中首先简述电子对抗情报的处理过程以及情报产品在电子对抗作战中的使用，然后简要概括数据融合对电子对抗情报处理意义。随后的章节中重点对电子对抗情报及与之相关的情报进行分类，并详细描述数据融合的作用，提出电子对抗情报数据融合的组网概念。最后展望电子对抗情报数据融合处理技术的发展前景。     

对美军典型战术数据链信号的侦察分析方法

介绍了数据链概念及基本情况.以美军现役典型数据链为例对其处理方法和分析流程进行分析,就当前对数据链信号侦察分析存在的问题给出了下一步侦察建议,可为航空兵电子对抗侦察提供通信支援,在通信侦察网络对抗领域有迫切的军事需求.     

微波功率模块——新型功率电子器件

微波功率模块MPM是上个世纪末提出的一种全新的电子器件,具有高效率、高增益、重量轻、体积小等优点,是功率放大技术的重大突破,已成为构建各种军用电子装备和民用系统的基本单元,在雷达、电子对抗和通讯等领域已得到应用,是未来武器装备核心电子器件。文中从MPM概念的提出入手,首先介绍了MPM基本组成与特点,然后对MPM的可靠性以及技术难点进行了分析,并展望了MPM的应用和发展。     

基于DoDAF的防空反导电子对抗装备体系结构建模

针对当前岛礁防空反导作战研究热点,以岛礁防空反导电子对抗"软抗击"的装备体系需求分析为输入,提出了基于美国国防部体系结构框架标准,运用TD-CAP软件进行装备体系结构模型构建的方法和步骤,主要选取了部分作战视角和系统视角描述模型,给出了较为全面、直观的岛礁防空反导电子对抗装备体系顶层概念框架。通过体系结构验证评估分析,验证了该体系结构具有完整性和一致性,可为未来岛礁防空反导电子对抗作战及装备发展提供思路与借鉴。     

复杂电磁环境下的雷达对抗技术分析

从雷达面临的复杂电子对抗环境以及雷达抗干扰技术的特点出发,对几种典型的雷达对抗技术进行了分析,最后概述了雷达抗干扰的典型体制发展方向。     

信息战电子对抗中大数据引导通信优化仿真

随着我国社会经济水平的不断提升,世界范围内都加大了对互联网技术的研究,通讯是实现信息传播的重要途径,因此信息优势也是竞争力优势。文章将从电子对抗的概念出发,分析大数据对引导通信的重要性、电子对抗中通信原理以及电子对抗的概念,为提高通信网络可靠性提供理论帮助。     

千里眼与隐身术

《千里眼与隐身术》以电子对抗技术为题材,向读者清晰地介绍了雷达和飞行器隐身的历史、构造、工作原理及其在交通、宇航、气象、天文、遥感、探矿及医学等民用上的现状和前景;同时也捕摄了国内外新闻报道中的热门话题,介绍了电子对抗的典型军用战例。该书对从事微波技术的科技工作者了解和熟悉相关学科、领域的内容无疑有所裨益,同时亦是普及国防知识的理想读物。全书共13节,包括:奇秒的电磁波、从蝙蝠到千里眼、千里眼——雷达、各行各业中的千里眼、战场上的雷达、静悄悄的“耳目”——雷达侦察、看不见的长城——雷达干扰、军事科学的新挑战——飞行器隐身、潜力巨太的激光雷达、潜艇的死敌——声纳、科学之战的     

基于HLA体制的舰载电子对抗系统仿真环境研究

首先简要介绍了HLA的概念和舰载电子对抗系统仿真环境研究的必要性，然后阐述了基于HLA体制的舰载电子对抗仿真环境研究的系统组成及主要模拟器的配置、功能，列出了关键技术，最后对全文进行了总结。     

机载电子对抗装备射频通道性能检测技术分析

机载电子对抗装备是保障飞机安全性能的主要装备之一,其射频通道性能对各种复杂作战条件下飞机飞行安全率具有较大的影响.因此,文章以机载电子对抗装备为对象,结合机载电子对抗装备的概念,论述了机载电子对抗装备的射频通道性能检测技术以及应用,并对机载电子对抗装备的射频通道性能检测技术优缺点进行了简单分析.     

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.     

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.     

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.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

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