传输

The round-trip time delay of different distance, time and packet size is gathered to obtain a statistical model of Internet communication line. Results of the data show the round-trip time delay of Internet approximately belongs to one of the exponent, al, normal or logarithm-normal distribution.

通过对不同传输距离、传输时间段与数据包大小等条件下传输时延的统计得出Internet通讯模块的双向传输时延近似符合指数、正态或对数正态分布中的统计模型。

The satellite transmission is one of the main means for broadcast transmission.

卫星传输是广播电视节目主要传输手段之一卫星地球站由模拟传输转为数字传输，其优势更加明显。

At first,there are three kinds of satellite recon information flow models are built,they are focus,narrow bar scan and wide bar scan.And the examples of them are given according the parameters of "Starlite" recon satellite constellation of USA.Secondly,the information capacity of the recon-sat storage without satellite transmission network is simulated and computed,which illustrates satellite transmission network is necessary.Lastly,the transmission of satellite recon information through a satellite transmission network is simulated and some primary simulation conclusions are given.

首先建立聚束、窄条带扫描、宽条带扫描等三种模式的卫星侦察业务流量模型，并参考美国Starlite侦察卫星星座的指标参数进行了计算举例；其次仿真计算了无卫星传输网络时侦察卫星星载存储器的信息量状况，指出卫星传输网络的必要性；最后仿真卫星侦察信息在卫星传输网络下的传输情况，并给出初步的仿真结论。

Multicarrier modulation in data transmission is discussed in the fourth chapter. The performance of MCM and single tone modulation over twisted pairs is compared. Discrete multitone modulation is used in ADSL system. A new variable constellation TCM method is proposed, It can adapt to the subchannel capacity automatically. The simulation results prove that this method is quite effective.

第四章讨论了多载波调制技术在数据传输中的应用，针对市话信道的具体传输环境，比较了单载波调制与多载波调制的性能；针对ADSL传输的目标，采用离散多频音DMT技术，独立提出一种新的星座图变化的格状码方案VCTCM，能动态地适应不同子信道的传输能力，给出的计算机仿真结果表明该方案有较好的效果。

For protecting author go on the right, the tendentiousness solution is to confirm it a kind of way of using the works to transmit the digitized works on network.

为保护作者对数字化作品在网络上进行传输的权利，倾向性的解决方案是确认网络作品的数字化传输是作者所独有的一种作品的使用方式，作者对其作品的网络数字化传输享有专有的权利，即网络传输权。

On the foundation of further analyzing present situation of our electric transmission price regulation, unifying concrete characteristic of electric transmission enterprises and rod competition theory and achievement rod method,proposed a comprehensive electric transmission price control model which combines price upper limit control and rod competition control,especially a measure model of production efficiency of electric transmission enterprise based on Malmquist index.

3对电力传输企业标竿激励涉及的绩效评价的技术方法、以及标竿激励规制方法和过程进行考察的基础上，进一步分析我国电力传输价格规制现状，结合我国电力传输企业的具体特征以及标尺竞争理论和绩效标竿方法，提出了价格上限规制和标尺竞争规制相结合的综合输电价格规制模型，特别是提出了基于Mulmquist指数的电力传输企业的生产效率的测度模型，并综合输电价格规制模型规制目标、结构设计、输入因素以及+/-Z的X因子以及Z因子的设定进行了深入的研究。

Video server sends a RSVP message to reserve resource for client, and the system calculates and analyses QoS parameters using control information of RTP/RTCP packets and ICMP Echo request message, and controls the transmission grade by corresponding strategy to ensure network QoS, which enhances the system reaction to network condition and stabilizes the throughput and solves the problems of data transmission and using bandwidth fairly between multicast data and other kind of data when network is congestible and unstable.

整个模型系统主要由视频服务器、路由节点和客户端构成，通过RSVP协议进行资源预留协商，并在传输过程中利用RTP/RTCP包中携带的控制信息结合ICMP Echo请求报文提取QoS参数，对其进行分析判断，采用相应策略对传输级别进行实时控制，保障了网络QoS，提高了系统对网络状况的反应速度，降低了传输速率的波动性，较好解决了网络拥塞和不稳定时数据的有效传输以及与其他数据流公平占用带宽的问题。

One of their crucial functions is to make up the error recovery due to the deteriorative channel transmission conditions, provide better links condition to the transmission control protocol of upper layer. Then, the study of RLC and MAC two layers retransmission mechanism is very important to whole wireless system.

这两层有一个重要的作用就是弥补无线通信系统中信道条件不理想或底层不理想造成的传输错误，为上层的传输协议提供性能良好的链路环境，提高上层数据业务在无线传输通信系统中的性能，因此研究RLC和MAC层的重传性能对整个无线传输系统是很重要的。

Generally the electronic parts and modules which developed by our self are achieved them EMC. But as soon as they are connected each other to form products, the series EMC problems are happing. Because mainly, the reason is the transmission of data, and the electronic connection. So based on the syntheses analysis of the transmission of image engineering equipment, it is significant to research the principle and technology. In the theory, some new methods of more kind of transmission data can be found, and compared them to the earlier ones. In the technology, the faster speed of the equipments can be gotten, and the area of image processing can be enlarged.

理论上，可以进一步发现各种类型数据传输的新方法，并与以往的方法进行比较，研究其效率，增加人们对数据传输的理解和认识；技术上，可以进一步提高图像工程设备的工作速度，拓宽图像处理的应用领域；应用上，将电磁兼容设计放在了设备开发的初期阶段——数据传输阶段，在考虑数据传输的同时进行电磁兼容设计是高效开发图像工程设备的前提，对节约开发费用和时间都有很好的社会效益和经济效益，收到事半功倍的效果。

In digital signal transmission systems, parallel transmission is the most efficient transmission technique at present for non-ideal channel. In which, orthogonally multiplexed QAM system and discrete multitone system are two typical systems.

在数字信号传输系统中，并行传输是目前最有效的一种抗信道失真传输技术，而正交复用QAM和离散多载波是两种并行传输系统典型的实现方式。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了