查询词典 communications

In order to realize the compatible communications system between digital TETRA and analogy MPT1327. Communications protocol between digital radio and control center is defined. Emergency call software flow for TETRA and MPT module is designed, and also state information sending and receiving for TETRA and MPT module is designed in this communication system. By comparing several solutions, switch methods between analogy TETRA communications and digital TETRA communications are designed including manual-switch and soft-switch. In the article, coding module of receiving and sending equipments in TATT analogy TETRA communications is described, so that it can be compatible with NOKIA network equipments and it also can improve the availability rate of the trunk system. In order to realize the integration of digital TETRA communication and analogy MPT1327 communications, double- frequency antenna system is researched.

通过几种车载电台解决方案比较，设计了相应的模拟集群通信系统与数字集群通信系统的切换方法，其中包括人工切换和软切换，实现了模拟与数字集群兼容的一体化移动列车调度电台解决方案；为了实现数字集群通信系统与模拟集群通信系统以及NOKIA与TAIT模拟集群通信系统之间的相互兼容，设计了新的数字车载电台与控制中心之间的通信协议；系统设计了用于数字集群通信模块的紧急呼叫通讯流程，以及设计了用于模拟集群通信模块状态信息发送与接收流程，以满足列车无线调度的运营要求；论文还论述了对TAIT模拟集群收发设备编码模块的改造，使之能与NOKIA的集群设备相兼容，提高了集群设备的利用率，为在NOKIA模拟集群通讯模块停产后寻找了一种可替代的兼容解决方案；为了实现数字集群通信系统与模拟集群通信系统设备的综合，论文还探讨了本工作所需专用的双频段的天线系统。

The spread spectrum communications are widely used in modern military communications, satellite communications, mobile communications and command, control, communication and intelligence( C~3I ) systems, because of its well multi-address access, low probability of interception, excellent performance of anti-jamming and secrecy.

扩展频谱通信作为新型的通信方式，由于其具有多址接入、低载获特性和较强的抗干扰能力，因此在现代军事通信、卫星通信、移动通信和指挥控制通信和情报(C~3I)系统中得到了广泛的应用。

Communications units used by the communications terminal are measured. An economic efficiency associated with the use of the terminal to communicate with the first and second mobile radiotelephone communications systems is determined from the measured communications units and the first and second stored critical values.

测量出通信终端所用的通信单位数后，根据测得的通信单位数和存储的第一和第二临界值就可以确定与使用终端与第一和第二移动无线电话通信系统的通信关联的经济效率。

The Internet switching service method for providing an Internet switching service to a subscriber connected to the Internet (214) to make an Internet telephone call by using an ID of a receiver are achieved by inputting the ID of a receiver who the subscriber wishes to communicate with, searching a data base (202) where a plurality of IDs and communications address data of the IDs are previously stored, for communications address data corresponding to the IDs, sending the searched communications address data to the subscriber, and the subscriber performing a telephone call, a fascimile transmission or sending a post by using the searched communications address data.

对与因特网(214)连接的用户提供因特网交换业务以利用接收方ID进行因特网电话呼叫的因特网交换业务方法，通过下列步骤实现：输入该用户想与之通信的接收方ID，对先前存储有多个ID和这些ID的通信地址数据的数据库(202)搜索与该ID对应的通信地址数据，将搜索到的通信地址数据送给用户，以及该用户通过用搜索到的通信地址数据进行电话呼叫、传真发送或发送邮件。

During flying, the tethered aerostat can carry communications equipments (such as base station at high altitude) and enlarge communications coverage so as to carry out emergent communications in disaster areas.

可搭载通信设备升空，提高通信覆盖范围，实现灾区应急通信；也可搭载光学成像设备，在社会重大活动中提供公共安全监视功能，是理想的应急通信和监视平台。

Products are widely used in wireless communications, optical communications, satellite communications, network technology and information-based society-building.

产品广泛应用于无线通讯、光通讯、卫星通讯、网络技术和社会信息化建设方面。

Based on the wide concerns about the Integrated Social Emergency Response Communications Systems,this paper mainly discusses the development strategies for digital trunking and emergency communications in China. The establishment of the state /province/city level integrated emergency response communications systems is very important. The plan and implementation of new generation Integrated Emergency Response Systems following the concepts of NGN and 3G evolution should be taken into consideration, The relationship between public networks and IERS should be correctively dealt with and actively coordinated. Besides, it is involved how to accelerate technology innovation, open correlative standards and interfaces, and promote effective interconnection and interoperation for operators and users to gain maximum benefits.

文章在论述目前广为关注的社会应急联动通信系统的基础上，探讨了中国数字集群及应急通信的相关发展策略，如有关国家/省/城市级应急联动通信的重要性，如何基于NGN及3G演进概念规划与建设新一代应急联动通信系统，如何正确处理与有机协调公众网络与专网应急联动通信之间的关系，如何加速技术创新，如何开放相关标准与接口、促进有效互联互通、维持多厂商环境下运营商及用户利益最大化等。

IT services firms in Europe such as ATOS Origin, Capgemini and BPO firms like Capita are now competing fiercely with US organizations, while communications service providers such as Equant have been steadily building their experience and professional services personnel and proving that communications outsourcing is best left to a communications expert.

它在欧洲事务等整车厂商出身，capgemini和氧化苯甲酰公司现人均喜欢与美国组织的竞争非常激烈，而通讯服务提供商等等分稳步建设方面的经验和专业的服务人员和证明通信外包留待通讯专家。

Communications functions range from basic ultrahigh/very high frequency to single channel ground and airborne radio system and Have Quick. The aircraft also supports several datalinks for communications and situational awareness such as Link 16 and a specialized multi-array datalink for stealthy communications between aircraft.

通信系统功能有甚高频/超高频频段通信，单通道空地无线电系统以及"Have Quick"跳频通信。F-35还支持多种通信和战场感知数据链，例如16号链以及一条用于战机间保密通信的多阵列数据链。

ABSTRACT Microcellular communications and low Earth orbit satellite communications will be playing a key role in forming the future personal communications network.

微蜂窝通信和低轨道卫星通信是组成未来个人通信网络的重要角色。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。