文章摘要信息 关键词 ： 无线电通信 信号干扰 幅度调制 [gap=636]Keywords : radio communication;signal interference;amplitude modulation
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地铁专用无线通信系统方案设计_轨道工程_工程技术_论文_中国路桥网 关键词：地铁 无线通信 方案设计 [gap=262]Key words：Metro， Radio communication， Scheme desige
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无线通讯：利用电磁波的辐射和传播，经过空间传送信息的方式称为无线电通讯（radio communication），简称无线通讯。无线通讯是电信网的重要组成部门。
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terrestrial radio communication 地面无线电通信
radio communication service 无线通信业务 ; [通信] 无线电通信业务 ; 无线电通信服务
simplex radio communication [通信] 单工无线电通信 ; 单工无线电通讯
fire radio communication network 消防无线通信网 ; 在一定的通信区域
fire radio communication system 消防无线通信系统
utility radio communication 实用无线电通信 ; [通信] 实用无线通信
marine radio communication 海上无线电通信 ; 航海无线电通信
radio communication sytem tell-tale 无线电话信号灯 ; 空气滤清器警报灯
Orthogonal Frequency Division Multiplexing (OFDM) scheme has become a popular technique in various high-speed wireless data transmission system, and it has been proposed as a standard for the next-generation mobile radio communication system.
正交频分复用(OFDM)技术已经成功的应用于许多高速无线数据通信系统中,并成为下一代移动通信系统所采用的标准之一。
参考来源 - 降低OFDM系统峰平比技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N communication by means of radio waves 无线电通信
Because the moon's body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.
由于月球阻碍了与探测器的直接无线电通信，中国首先必须把一颗人造卫星送入月球轨道上的一个点，人造卫星可以从那里向航天器和地球发射信号。
The phones interfere with the radio communication at the airport, right?
电话干扰了机场的无线电通讯，对吗？
However, this purely visual system was useless in bad weather, and, by the 1930s, radio communication was coming into use for ATC.
然而，这种纯粹的视觉系统在恶劣天气下毫无用处，到了20世纪30年代，无线电通信开始用于空中交通管制。
Marconi sent the first radio communication signals through the air in eighteen ninety-five.
VOA: special.2010.01.31
Over the years,radio has become one of the most important forms of communication.
VOA: special.2010.01.31
The North says it will stop using maritime shortwave radio frequencies with the South and cut off other means of emergency communication.
VOA: standard.2010.05.27
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