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satellite broadcast tv
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  卫星广播电视
     A Microstrip Planar Array Antenna Design for Satellite Broadcast TV Reception
     应用于卫星广播电视接收的微带平面阵列天线设计
短句来源
     This paper focuses on the design of microstrip planar array antenna for satellite broadcast TV reception.
     本文侧重于卫星广播电视接收的微带平面阵列天线的研制。
短句来源
     Presently the problem of microstrip planar array antenna for satellite broadcast TV reception is low gain and high feeding loss, so we can use PTFE foam material in order to reduce loss and improve gain of planar array antenna.
     因此该天线可以作为车载天线,在移动的情况下仍能接收卫星广播电视信号。 增益低和馈电损耗较大是目前卫星电视微带平面天线所存在的问题,我们采用聚四氟乙烯泡沫塑料压层板有助于减少损耗和提高增益。
短句来源
     Through gateway the MAN can be interconnected with the Broadband Data Micowave Network,VSAT,Satellite Broadcast TV System,and Ethernet. There are up to 254 nodes connecting to the network,and the distance between two adjacent nodes covers f more than 5 kilometers. We use 1.3μm SMF as the transmission medium.
     通过网关,该网可以和宽带数字微波网、CSAT网、卫星广播电视系统及以太网相连,允许连接多至254个节点,两节点之间的距离可达5km或更长,使用1.3μm波长单模光纤作为传输媒质。
短句来源
  相似匹配句对
     THE EXPERIMENTAL DEVELOPMENT OF THE SATELLITE T. V. BROADCAST RECEIVER
     卫星广播电视接收机的研制
短句来源
     The Optimization Location of Communication and Broadcast Satellite
     通信广播卫星的最佳轨位
短句来源
     Used satellite communications in the broadcast and TV technology
     广电系统中的卫星通信应用
短句来源
     3 satellite.
     并通过了亚洲3号卫星的200多个电台的码流测试。
短句来源
     Satellite Communications
     卫星通信发展综述
短句来源
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The fiber optic technology has matured to the point where Metropolitan Area Networks(MAN)can be built to operate at speeds from 150Mbps to more than IGbps. This paper introduces an experimental fiber optic MAN.The topology of this MAN is an open looped dual bus,and the data rate at each bus is 155.520 Mbps.We apply ATM technique and modified,802.6 DODB MAC protocol,using universal packet switching.The cell format is completely.compatible with B-ISDN cell.Through gateway the MAN can be interconnected with the...

The fiber optic technology has matured to the point where Metropolitan Area Networks(MAN)can be built to operate at speeds from 150Mbps to more than IGbps. This paper introduces an experimental fiber optic MAN.The topology of this MAN is an open looped dual bus,and the data rate at each bus is 155.520 Mbps.We apply ATM technique and modified,802.6 DODB MAC protocol,using universal packet switching.The cell format is completely.compatible with B-ISDN cell.Through gateway the MAN can be interconnected with the Broadband Data Micowave Network,VSAT,Satellite Broadcast TV System,and Ethernet.There are up to 254 nodes connecting to the network,and the distance between two adjacent nodes covers f more than 5 kilometers.We use 1.3μm SMF as the transmission medium.This paper emphasizes on the design and implementation of the Medium Access Control(MAC) Protocol

介绍了一个实验性光纤区域网,它为开环双总线拓扑结构,每条总线上的比特率为155.52Mbps,采用ATM(异步传输模式)技术和修改的802.6DQDB媒质接入控制(MAC)协议,使用全分组交换,信息单元格式与宽带综合业务数字网完全兼容。通过网关,该网可以和宽带数字微波网、CSAT网、卫星广播电视系统及以太网相连,允许连接多至254个节点,两节点之间的距离可达5km或更长,使用1.3μm波长单模光纤作为传输媒质。

 
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