敌我识别器及其技术发展

在战争中，敌我识别是非常重要的。介绍了敌我识别器的发展历史、几种工作模式及其性能特点。并进一步阐述了敌我识别器技术的发展趋势。     

激光敌我识别技术

本文简述了激光敌我识别器的发展现状 ,对协同式激光敌我识别器进行了深入探讨     

激光敌我识别技术

本文简述了激光敌我识别器的发展现状，对协同式激光敌我识别器进行了深入探讨。     

机载电扫天线问答机总体设计

询问天线的安装问题一直以来制约着机载敌我识别器的发展,为此,介绍了一种适用于机载平台的电扫询问天线敌我识别器问答机的系统组成、工作原理以及技术特征,并简述了试验情况.     

二次雷达射频接收的应用

二次雷达是识别雷达所发现目标的敌我属性的电子设备,主要用于军事监测和打击,装备在飞机、舰艇、坦克和雷达站的询问机或问答机,组成合作式的目标敌我识别系统。本文介绍增强型舰载识别器,该识别器扩大了识别目标的信息范围,提高了识别目标的可靠性、保密性和抗干扰性能等。     

敌我识别S模式询问信号实时检测技术

为了在非合作条件下实时截获敌我识别S模式询问信号,分析了S模式询问信号特征,并提出敌我识别S模式询问信号实时检测技术。通过脉冲信号检测、时域参数测量和脉冲分选技术,实时检测S模式询问信号,获取采用差分相移键控(DPSK)编码的数据,并在现场可编程门阵列(FPGA)中进行了实现和验证,试验结果表明,该检测技术能够有效地检测并截获敌我识别S模式询问信号。     

二次雷达敌我识别器与微电子技术应用

二次敌我识别系统是通过发射一串射频脉冲，对装有应答器的协同目标进行“一问一答”方式完成目标敌我属性识别。这种系统是世界各国直接识别目标敌我系统属性的主要手段。本文主要介绍了二次雷达识别系统的主要特点及微电子技术在该系统中的特殊意义。另外，还对二次雷达敌我识别器应用微电子技术提出了几点建议。     

综合敌我识别方法研究

针对协作式二次雷达敌我识别只能识别“我方”,不能唯一地确认“敌方”的不足,提出基于协作式敌我识别器和信号情报的综合敌我识别方法,能较好地提供全局性的“敌方”、“我方”和“中立方”信息.介绍了系统组成,描述了系统工作过程,指出了需要进一步研究的技术.     

舰用敌我识别器的抗干扰措施

主要介绍了三脉冲体制的观用敌我识别器为提高其信号码接收的可信反而采取的抗干扰措施：旁瓣干扰抑制、非同步干扰抑制、宽窄脉冲抑制。     

旁瓣抑制技术在Ⅱ型敌我识别系统中的应用

在综述和差旁瓣抑制技术的基础上，详细讨论了某火控系统ＷＶ９００敌我识别器采用和差接收旁瓣抑制技术的方法，介绍和差接收机的基本工作原理和关键技术，指出该技术的使用锐化了主波束，     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

Complete approach to automatic identification and sub-pixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.     

社长序言（英文）

正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta-     

Call for Papers

正Introduction Jointly sponsored by the China Institute of Communications(CIC)and the IEEE Communications Society(IEEE ComSoc)since the year 2013,China Communications,currently,is aiming to gradually realise the transition from journal to magazine content and style.     

INTEGRATION OF OPTICAL AND WIRELESS NETWORKS

正For a long time,optical and wireless systems/net-works are developed in separate communities witha few attempts for in-depth convergence.In fact,it prom-ises many advantages to combine the optical and wire-less technologies in the levels of systems and networks.Recently,both academia and industry have made manyefforts to enter a new phase of development to take op-tical and wireless systems as fully integrated networks.To provide high bandwidth and reliable service for bothfixed and mobile users,a well-designed network must     

Call for Papers—Feature Topic,Vol.12,No.3,2015

正Smart Grid Communications The electric power industry is undergoing profound changes as the industry aims to capture the promise of a smart grid for a sustainable energy future.Enabled by the advanced sensing devices such as Phasor Measurement Units(PMUs),increasingly powerful