5G通信组件技术特点及军事通信领域应用

本文介绍了目前三种 5G 射频组件,并关注这些组件在军事通信领域中的应用。通过详细介绍 RF MEMS 开关、基于物联网的能量收集器、RFSAW 滤波器三种组件的内部结构、技术特点以及它们支持增强系统应用的功能，同时根据其技术特点，对 5G 通信配套组件在未来军事通信领域的应用进行了展望。     

基于组件技术的配电网管理系统的设计与实现

通过分析配电网管理系统（DMS）功能结构以及组件技术。将COM／DCOM的功能特点与DMS的基本要求有机地结合在一起，提出了运用组件技术建立DMS的基本设想。系统采用多层体系设计，先从功能实现上引入组件设计思想，再遥步实现系统及结构的迁移。DMS与GIS的融合，并给出了各结构层功能组件以及层间接口的设计。在组件技术的面向对泉及分布式属性、操作系统和平台无关性、事件通知功能、高效的通信机制及其网络安全技术等方面，均达到了配电网管理的功能要求。     

基于Fortran组件的Web计算应用平台构建研究

基于组件的应用服务平台通过混合语言编程及松散数据耦合机制,能充分发挥数据存储、数据处理及数据展示的特性,具有良好的开放性能,也是Web应用服务平台构建发展的主流方向.本文结合项目开发实际,对基于Fortran核心计算组件的Web应用服务平台的体系结构、组件设计、数据耦合等方面设计思想进行了系统介绍,并对组件编译与数据耦合等关键技术实现思路进行详细论述,具有良好的实际应用价值,以期对同类开发具有一定的借鉴作用.     

基于组件对象模型的通用数据报表设计与实现

针对传统数据分析管理系统缺少灵活性,不能重用等缺点,设计一种基于组件对象模型思想的通用数据分析管理软件。将自定义报表、数据库资源与数据处理组件模块统一结合,建立报表定制与生成的结构模型。提出了报表动态分区双缓存打印方案,将活动数据对象技术与标准查询语言查询功能进行有效结合,提高了报表设计通用性。应用自动化接口技术扩展组件接口,实现了动态添加统计方法的功能。     

MEMS系统级设计与基于多端口组件网络的建模方法

MEMS的系统级设计对保证其整体综合性能和合理开发MEMS产品至关重要.针对MEMS的多能量域耦合、多信号混合的特点以及能量非保守等特殊要求,提出了基于多端口组件网络的MEMS系统级建模方法--采用多端口组件表示MEMS的功能结构部件,组件与组件通过端口联成网络表示整个系统;用统一规范化的微分代数方程表征并用硬件描述语言表述多端口组件.针对梁等具体的MEMS功能结构部件,采用宏建模方法确定其行为方程,从而得到有特定物理意义的、可供重用的组件模型.最后,给出了微加速度计的基于多端口组件网络方法的系统级设计示例.     

MEMS系统级设计与基于多端口组件网络的建模方法

MEMS的系统级设计对保证其整体综合性能和合理开发MEMS产品至关重要。针对MEMS的多能量域耦合、多信号混合的特点以及能量非保守等特殊要求 ,提出了基于多端口组件网络的MEMS系统级建模方法———采用多端口组件表示MEMS的功能结构部件 ,组件与组件通过端口联成网络表示整个系统 ;用统一规范化的微分代数方程表征并用硬件描述语言表述多端口组件。针对梁等具体的MEMS功能结构部件 ,采用宏建模方法确定其行为方程 ,从而得到有特定物理意义的、可供重用的组件模型。最后 ,给出了微加速度计的基于多端口组件网络方法的系统级设计示例     

模式识别和电视跟踪在前庭功能检查中的应用

应用模式识别和电视跟踪原理测量眼球在视靶信号刺激下的运动,为分析飞行员、车辆驾驶员的前庭功能提供一种先进的检查方法.采用均衡化、形态滤波和形心计算等方法实现了瞳孔区域的自动定位和实时跟踪;通过Harris角点检测和Lucas-Kanade光流跟踪实时测量出虹膜的旋转角度,为前庭功能分析奠定了良好的基础.通过实验验证,所介绍的眼球跟踪算法已达到了预期的效果,并已成功应用在前庭功能检查分析系统中.     

基于改进可达矩阵的多余度飞机仿真系统建模

在建立飞机维修仿真中的系统模型时,针对飞机系统中航线可更换组件(LRU)之间的逻辑关系难以表达并伴随多余度系统的问题,提出一种基于扩展可达矩阵的系统建模方法,并通过组件AGENT化的方法,表达了组件在系统中的逻辑和组件状态改变对系统工作逻辑的影响。该方法能抽象飞机系统逻辑,并转化为计算机可实现的对象。通过分析可达矩阵,可明确信号传递与受维修行为所关联的组件。最后,通过构建自动飞行系统(AFS)的逻辑功能模型验证了该方法的可行性。     

应用程序、专用程序、实用程序

0101040基于 Web 与组件技术的企业应用系统设计模型[刊]/林子禹//计算机工程与应用.—2000,36(6).—152～154(A)文章介绍了“Browser-Web Server-DBMS”体系结构的三种模式及相关的程序设计技术~(D1),提出了一个基于 Web 与组件技术的企业应用系统软件设计模型,开发了一个应用实例,并统计分析了相关数据,说明了基于 Web 与组件技术的软件设计方法对于提高组件重用率,缩短开发周期,提高开发效率,提高系统的可维护性等具有明显的优势。参3     

MEMS系统级设计与基于多端口组件网络的建模方法

MEMS的系统级设计对保证其整体综合性能和合理开发MEMS产品至关重要。针对MEMS的多能量域耦合、多信号混合的特点以及能量非保守等特殊要求，提出了基于多端口组件网络的MEMS系统级建模方法——采用多端口组件表示MEMS的功能结构部件，组件与组件通过端口联成网络表示整个系统；用统一规范化的微分代数方程表征并用硬件描述语言表述多端口组件。针对梁等具体的MEMS功能结构部件，采用宏建模方法确定其行为方程，从而得到有特定物理意义的、可供重用的组件模型。最后，给出了微加速度计的基于多端口组件网络方法的系统级设计示例。     

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