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所属行业:信息传输、软件和信息技术服务业

  • 36981.2013年中国传媒发展报告

    [文化、体育和娱乐业,信息传输、软件和信息技术服务业] [2014-04-03]

    2012年,中国传媒产业在宏观经济发展速度减缓的形势下仍保持稳步增长。传媒业与电信、IT制造等相关产业的界限日益模糊,传媒业边界的扩张不但催生了产业规模化发展,更酝酿着行业转型和管理体制变革的暗潮。传媒
    产业集中度的进一步提升也使得占据优势资源的传媒集团获得了更大的市场支配力,也推动了行业整体实力的提高。2013年,将是传媒产业承上启下的变革之年:国家广电总局和新闻出版总署的大部制合并调整,报刊市场管理的刊号审批方式和进入市场流通的改革,传媒机构转企改制的深化,网络媒体审查方式的改进,对境外网络媒体的管理方式的科学论证和制度程序的合理性的建设,这些都可能对未来传媒业发展产生重大影响。《2013年:中国传媒发展报告》在结构上分为:总报告、电视业、报刊业、图书业、广播业、电影业、互联网、移动媒体、传媒生态及地区传媒产业十部分,对传媒产业总体及各细分行业的发展状况与趋势进行了深入而透彻的分析。
    关键词:传媒;电视产业;报刊产业;图书产业;广播产业;电影产业;互联网产业;移动互联网产业
  • 36982.如何推动公共信息资源开放共享?

    [信息传输、软件和信息技术服务业] [2014-04-02]

    关键词:信息共享;数据共享平台
  • 36983.国务院发展研究中心李广乾:智慧城市建设的三个维度

    [信息传输、软件和信息技术服务业] [2014-04-02]

    关键词:智慧城市;信息化
  • 36984.网络基础设施规制对宽带价格的影响——美韩模式比较及其启示

    [信息传输、软件和信息技术服务业] [2014-04-02]

    对宽带价格的研究重点在于网络基础设施规制问题。本文在服务竞争和设施竞争的分析框架下,回顾了以美国和韩国为代表的两种典型宽带市场模式;通过对两种模式的比较分析,探讨了其对我国网络基础设施规制和宽带价格控制的可资借鉴之处,包括促进网络设施投资激励、鼓励网络的模式间竞争和加强对服务竞争的规制等;最后,对我国宽带市场竞争模式的选择提出了建议。
    关键词:服务竞争;设施竞争;宽带价格;网络基础设施规制
  • 36985.统一通信融合系统移动客户端的研究与实现

    [信息传输、软件和信息技术服务业] [2014-04-02]

    针对融合通信系统的核心特征和其在智能移动终端扩展上所面临的主要问题,提出了一个对各类需求具有通用性的软件体系架构,并对架构的具体实现思路和主要技术进行了详细阐述。解决移动化中遇到的后端平台多样化、终端系统多样化、网络不稳定、安全性不够等问题。
    关键词:SIP,融合通信客户端,软件体系架构
  • 36986.集成短距离、低带宽、可穿戴通信网络技术

    [信息传输、软件和信息技术服务业] [2014-04-01]

    This report provides a summary of research and development (R&D) activity and accomplishments, with respect to the development of SPARNET, for U.S. Army contract number W911QY-11-C-0012 - Integrated Short Range, Low Bandwidth, Wearable Communications Networking Technologies. The research and development (R&D) efforts conducted in this project were aimed at the implementation of an integrated short-range, low-bandwidth, wearable communications, sensing, and networking, based on software-defined-radio (SDR) technology.
    关键词:通信;无线电系统;通信网络;短距离;可穿戴通信
  • 36987.多次反射继电器的应用以增强机场移动航空通信系统网络的性能

    [铁路、船舶、航空航天和其他运输设备制造业,信息传输、软件和信息技术服务业] [2014-04-01]

    The proposed technology, known as AeroMACS, will be used to support fixed and mobile ground to ground applications and services. This article proposes and demonstrates that IEEE 802.16j-amendment-based WiMAX is most feasible for AeroMACS applications. This amendment introduces multihop relay as an optional deployment that may be used to provide additional coverage and/or enhance the capacity of the network. Particular airport surface radio coverage situations for which IEEE 802.16-2009-WiMAX provides resolutions that are inefficient, costly, or excessively power consuming are discussed. Our initial simulation results suggest that no additional interference to MSS feeder link is caused by deployment of IEEE 802.16j-based AeroMACS.
    关键词:通信;通信网络;C波段;电信
  • 36988.智能手机辅助快速通信和控制系统全面的系统测试计划

    [信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-04-01]

    This thesis contains a test plan and implementation of the plan for the SPARCCS system as well as a formal technical analysis of the system to ensure the proper operation, verification, and validation of the initial SPARCCS functional system. The SPARCCS system and the various wireless technologies upon which the system operates are thoroughly tested in various field and live settings to simulate real-world military and emergency services operations. The tests are designed to determine the optimal configurations of SPARCCS as well as the optimal wireless technologies to be used with SPARCCS for various operational situations.
    关键词:通信;指挥控制通信;移动计算机处理技术;无线通信;智能手机辅助快速通信
  • 36989.通过社交工具和技术进行简单的空间站飞行控制通信和记录保持

    [信息传输、软件和信息技术服务业] [2014-04-01]

    This paper explores three developmental ground system concepts under development at Johnson Space Center s (JSC) Mission Control Center Houston (MCC-H) and Marshall Space Flight Center s (MSFC) Payload Operations Integration Center (POIC). These concepts could reduce ISS control center voice traffic and console logging yet increase the efficiency and effectiveness of both. The goal of this paper is to kindle further discussion, exploration, and tool development.
    关键词:通信;飞行控制;国际空间站;音频通信;计算机网络;人机接口
  • 36990.支持实时仿真空间链接的硬件和软件集成

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-04-01]

    Prior to operational use, communications hardware and software must be thoroughly tested and verified. In space-link communications, field testing equipment can be prohibitively expensive and cannot test to non-ideal situations. In this paper, we show how software and hardware emulation tools can be used to accurately model the characteristics of a satellite communication channel in a lab environment. We describe some of the challenges associated with developing an emulation lab and present results to demonstrate the channel modeling. We then show how network emulation software can be used to extend a hardware emulation model without requiring additional network and channel simulation hardware.
    关键词:通信;卫星通信;仿真;实时操作;电脑系统程序
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