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internet仿真
相关语句
  internet simulation
     Formation of Internet Simulation Training Environment
     Internet仿真教学环境的构造
短句来源
  “internet仿真”译为未确定词的双语例句
     The Establishment of Network INTERNET Service Simulating in Labs
     学生机房INTERNET仿真环境的建立
短句来源
     Organization and Realization of Internet Emulation Experiment
     Internet仿真实验的组织与实现
短句来源
     We analyze the Qos of Internet and characterize it in 11 parameters. After that we present the Implementation technology of Internet emulator based on FreeBSD's packet filter kernel part.
     首先提取了 11个参数来概括InternetQos,并根据这些参数 ,利用FreeBSD内核的包过滤技术设计和实现Internet仿真系统。
短句来源
     By emulating the behavior of Internet, the emulator provides users with an efficient method to test the performances of their Internet products.
     Internet仿真系统通过仿真Internet端到端行为 ,使网络应用开发者在LAN中就可以测试互联网软件在不同网络环境下的性能 ,使低成本高效率地开发和验证互联网产品更加容易
短句来源
     The article deals with realize of simulation technology and service as well as the development of its application.
     本文提出了一种Internet仿真技术,能完全仿真Internet环境,并能进行Internet资源的各项管理,在此基础上实现Internet上的服务与开发应用。
短句来源
  相似匹配句对
     Formation of Internet Simulation Training Environment
     Internet仿真教学环境的构造
短句来源
     The Establishment of Network INTERNET Service Simulating in Labs
     学生机房INTERNET仿真环境的建立
短句来源
     Wireless Internet
     无线Internet
短句来源
     The Origin and Growth of Internet
     Internet的发展史
短句来源
     LAN emulation over ATM
     局域网仿真
短句来源
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  internet simulation
His current interests include Intranet/Extranet applications, remote monitoring and control, Internet simulation and courseware.
      
The question that how many sources are enough to make a realistic Internet simulation, has not been theoretically explained till yet.
      


An internet statistic model was made by analysis of the time delay of different distance, packet size and probing time The distribution of round trip time delay is exponential, normal or logarithm normal Based on the internet statistical model, a simulation environment for Web based teleoperation and its internet simulator are developed The internet simulator, providing three statistical distribution as well as real data distribution, can improve the flexibility and reduce the developing time of the...

An internet statistic model was made by analysis of the time delay of different distance, packet size and probing time The distribution of round trip time delay is exponential, normal or logarithm normal Based on the internet statistical model, a simulation environment for Web based teleoperation and its internet simulator are developed The internet simulator, providing three statistical distribution as well as real data distribution, can improve the flexibility and reduce the developing time of the system

通过对Internet进行不同地点、时间段和数据包大小的传输时延统计 ,得到了网络传输时延近似符合正态、指数分布或对数正态分布的统计规律。根据Internet的统计模型建立了以Internet仿真器为基础的网络遥操作系统仿真环境。Internet仿真器提供统计模型的三种分布和与实测数据相同分布的时延 ,能够提高系统设计与仿真的灵活性和减少系统的开发周期

This paper focus on the characters of Internet and the implementation of Internet simulator. We analyze the Qos of Internet and characterize it in 11 parameters. After that we present the Implementation technology of Internet emulator based on FreeBSD's packet filter kernel part.By emulating the behavior of Internet, the emulator provides users with an efficient method to test the performances of their Internet products.

该文着重讨论InternetQos特性和Internet端到端 (ENDTOEND)仿真实现技术。首先提取了 11个参数来概括InternetQos,并根据这些参数 ,利用FreeBSD内核的包过滤技术设计和实现Internet仿真系统。Internet仿真系统通过仿真Internet端到端行为 ,使网络应用开发者在LAN中就可以测试互联网软件在不同网络环境下的性能 ,使低成本高效率地开发和验证互联网产品更加容易

Compressed video is vulnerable to transmission errors when transmitted over unreliable channels. In this paper, a two-step multi-weighted boundary-matching algorithm (TMBMA) for video error concealment is proposed to combat the transmission errors. With this algorithm, the motion vector (MV) of damaged block can be estimated by making full use of information of blocks around the damaged one. A pre-concealment is implemented to improve video frame quality to some degree and then the multi-weighted boundary-matching...

Compressed video is vulnerable to transmission errors when transmitted over unreliable channels. In this paper, a two-step multi-weighted boundary-matching algorithm (TMBMA) for video error concealment is proposed to combat the transmission errors. With this algorithm, the motion vector (MV) of damaged block can be estimated by making full use of information of blocks around the damaged one. A pre-concealment is implemented to improve video frame quality to some degree and then the multi-weighted boundary-matching algorithm is used to evaluate every MV candidate of the damaged block. The MV candidate giving the minimum boundary-matching differences is selected to conceal the damaged block and video frame quality can be improved further. The disadvantages of side matching algorithm (SMA), such as incorrect MB displacement at object border and poor performance when one entire frame or plenty of consecutive GOBs are lost, are overcome with this algorithm. It is proved by H.263+ simulation results that satisfactory concealment performance can be achieved by effectively controlling the propagation of video errors.

为了克服视频传输中因视频传输差错引起的视频质量下降 ,提出了一种视频差错掩盖的两步多权值边框匹配算法。该算法充分利用了受损宏块周围的宏块信息来估算受损宏块的运动向量 ,并首先通过预掩盖受损宏块 ,使视频图像质量初步改善 ;然后在此基础上利用两步多权值边框匹配算法评估受损宏块的候选运动向量 ;最后用产生最小边界匹配差值的候选运动向量的运动补偿块来替代受损宏块 ,以进一步改善图像质量。这样就基本上克服了边界匹配算法在物体边界对运动向量估算不准确以及大量连续 GOB或整帧丢失时 ,掩盖效果较差甚至无法掩盖等不足。通过基于 H.2 6 3+和 Internet的仿真实验表明 :该算法不仅能有效地抑制视频差错扩散 ,并能取得满意的差错掩盖效果。

 
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