苏州一卡通系统采用双界面智能卡

苏州城市一卡通系统,简称“苏州通”,作为苏州城市信息化平台的关键系统,是“数字苏州”的重要基础设施,也是苏州信息化建设和城市形象的窗口。“苏州通”的建设目标是:在统一规划、统一标准、统一管理、资源共享、一卡多用的基础上,采用先进成熟的计算机技术和智能IC卡技术,构筑高效多应用的城市一卡通应用信息平台,以先进的多应用智能IC卡电子信息交互和电子支付收     

有线网络综合工单系统的设计和应用

本文是以苏州有线的运维流程为基础,提出了一种新型综合工单系统的设计思路和实现方案,并将该系统成功应用到现有苏州有线网络的实际运营中,大幅提高了苏州有线的客户服务质量,满足了苏州有线网络业务的快速发展.     

新产品、新技术简讯

科大讯飞开发成功广东话语音合成系统科大讯飞宣布推出广东话语音合成系统—InterPhonic Cantonese2.2。这标志着其产品线进一步丰富,将为包括粤港在内的更广泛地区和人群提供更加完善的产品和更加周到的服务,同时,这也是国内首家推出的广东话语音合成系统。据了解,新近推出的InterPhonic Cantonese 2.2语音合成系统,可以将任意的文本转换成清晰、流畅、自然的广东话语音,现在,粤、港两地的人们很轻松就能体验到普通话、英语和广东话3个语种的自动语音服务了。     

西门子通信解决方案助力苏州地铁系统发展

经过对于城市轨道交通可行性多年的调研,考察和评估后,苏州市政府终于在2007年底启动了其地铁系统的建设项目。据报道,苏州轨道交通一号线将于2012年投入运营。到那时,苏州将成为中国第一个拥有自己地铁系统的地级城市。成熟完善的通信系统对于地铁系统来说是至关重要和不可或缺的。作为世界领先的企业通信解决方案供应商,上海西门子数字程控通信系统有限公司（SBCS）在苏州轨道交通一号线项目中将为其构建高效、灵活、可靠的实时通信系统,     

SVCS 300内话系统简介及测试分析

文章对新一代SVCS 300内话系统进行分析研究,介绍了SVCS 300系统的工作特点和系统构成,根据SVCS 300内话系统的工作原理,进行实际VoIP测试,并对结果进行了科学的分析,为SVCS 300内话系统的实际使用提供相关经验。     

基于话者因子评分的说话人确认

针对基于因子分析模型的说话人确认系统评分的复杂性以及需要较大运算量的问题,文章直接利用话者因子的余弦距离相似度来计算评分。首先在训练阶段和测试阶段分别用因子分析的方法从语音中估计出话者因子,然后直接利用话者因子评分。对比SVM和其它的JFA-GMM-UBM话者确认系统,本文中所采用的系统训练阶段和测试阶段的流程相同,并且目标话者模型只需要存储话者因子,存储量少。在NIST2008数据库上的实验结果表明,余弦距离评分对比其它因子分析模型的评分方法,更加简单,并且话者确认系统的性能也有提高。     

安德鲁扩建苏州工厂

2009年3月18日,康普全资子公司暨全球通信系统及设备领域企业安德鲁（Andrew）无线通信公司宣布,启动扩建其位于苏州的制造工厂和配送中心。安德鲁在苏州、深圳设立制造工厂,在北京、上海等地设有销售公司和物流中心,中国研发中心分别位于苏州、上海和深圳。     

SQLServer数据库高可用性方案的研究和实践

针对台内各项业务系统对数据库的高度依赖,苏州广电总台依据实际情况,设计了一套双机群集再镜像的高可用数据库系统,在苏州台媒资系统中实施,取得了良好的效果.主要介绍了该系统的设计目标、拓扑结构和系统特点.     

苏州广播电视总台与Panasonic公司意向采购签字仪式

2008年12月8日,苏州广播电视总台与松下电器（中国）有限公司在苏州就采购松下DVCPROP2产品签署了意向采购协议书。苏州广播电视总台台长瞿长林、松下电器（中国）有限公司广播电视系统营销公司总经理大西步太以及苏州厂播电视总台总工程师郭昌雄、技术中心主任王治尧出席了签字仪式并见证了采购协议的签署。     

有线网络综合网管监控调度中心的建设

苏州有线“综合网管监控及调度中心”项目实现A/B平台相融合、全程全网可管可控、支持故障动态感知的端到端业务和网络管理调度系统,系统实现全网全覆盖的可视化基础网络资源管理链和运维知识管理体系,大幅度加强了苏州网络的监管能力和运维效率.     

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.     

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.     

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