multiplexing(多路复用)是信道复用技术,包括频分复用(FDM)、时分复用(TDM)、统计时分复用(STDM)、波分复用(WDM
synchronous time-division multiplexing (TDM), and improved synchronous TDM. FDM is the most widespread. TDM is commonly used for multiplexing digitized voice streams. The third type improves the efficiency of synchronous TDM. It is known by various names: ...
a low level ofmutual interference, so long as they are on sufficiently separatedoptical frequenciesand theoptical power levelsare not too high. This is a form of FDM, but since optical wavelengths, rather than frequencies, are usually specified, it is known aswavelength division multiplexing(WDM)...
(SS) burst, wherein different SS blocks of the burst are transmitted using different transmit beams and performing frequency division multiplexing (FDM) or time division multiplexing (TDM) to include one or more other types of signals that need to be multicast and are also transmitted using the...
A.时分(TDM)B.频分(FDM)C.波分(WDM)D.空分(SDM)本题来源: 2017年湖南软件水平考试考试考前冲刺卷(1) 查看最佳答案和解析 软件水平考试 试卷 在该项目测试准备会上,团队成员发表了以下观点:软件测试的目的是为了验证软件程序无错误。__ 为了保证网络升级改造工程的质量,设备迁移完成且网络恢复正常后,监理使用...
Time division multiplexing (TDM) -The time-domain equivalent of FDM that divides up one communication line and carrier frequency with smaller time slots. Depending on the clocking method, TDM can perform both synchronously and asynchronously, where the former assures equal time-division frames and th...
A.时分(TDM)B.频分(FDM)C.波分(WDM)D.空分(SDM) 点击查看答案手机看题 你可能感兴趣的试题 单项选择题 当前世界范围内最大的计算机互联网络是(26)。它使不同的计算机之间能互相通信最核心的协议是(27)。它可以提供(28)、(29)、(30)和文件传输等多种功能,其中(29)基于HTTP协议,而(30)则采用Telnet协议...
Wavelength-division multiplexing (WDM) is another technique that is similar to FDM but used in optical communication systems.In WDM, in order to allocate each input signal to a wavelength band, we split the possible bandwidth of an optical fiber into a number of wavelength bands: ...
The applications of various multiplex technology in FBG sensing, including the principles of operation, characteristics and functions of WDM, TDM, FDM etc are described and compared on surveying the research achievements in this field for the last ten years....
multiplexing概念多用于通信领域,详细可看Multiplexing – Definition – Types of Multiplexing: FDM, WDM, TDM[2],截取两张图片表示multiplexing技术前后的对比: 在没有multiplexing时,每次通信,一个通道上只能传输一个信号,浪费了带宽 当有了multiplexing技术后,通过设备多路复用器multiplexer(MUX),一个通道可以传输多个...