Basic multiplexing structure for synchronous digital hierarchy signals 同步数字体系信号的基本复用结构
However , some experts say sonet ' s tdm structure is too rigid for flexible provisioning or bandwidth sharing 但是,有些专家认为, sonet的时分多路复用结构( tdm )太死,不利于灵活地提供服务或实现带宽共享。
The forming mechanism of crosstalks in the tdm system was analyzed theoretically , and the relationship between crosstalks and the extinction ratio of optical pulse modulator used in the tdm system was investigated . the interchannel and intrachannel crosstalks in the wdm system were discussed separately , and the contributions to crosstalks were appraised from architecture ’ s alteration , the finite isolation between channels in multiplexers or demultiplexers , and nonlinear effects in the system . noises in the large - scale multiplexing system were studied theoretically , and all kinds of factors were considered that have relation to noises , phase resolution , and dynamic range of the system , such as multiplexing channel number , the length of the transmission fiber , using in - line erbium - dropped fiber amplifiers or not , and so on 本文从理论上分析了光纤水听器时分复用系统串扰的形成机理,分析了光脉冲调制器的消光比与系统串扰的关系;分别对光纤水听器波分复用系统的异频串扰和同频串扰进行了理论分析,研究了光纤水听器波分复用结构、波分复用器与解复用器隔离度等因素以及非线性效应对系统串扰的影响;对大规模光纤水听器复用系统噪声进行深入细致的理论分析,研究了系统噪声、相位分辨率、动态范围与复用数目、传输光纤长度、中继光纤放大器等诸多因素的关系。
复用: multiplexing; multiplex结构: structure; composition; cons ...同步数字体系信号的基本复用结构: basic multiplexing structure for synchronous digital hierarchy signals可重用结构: reusable architecture试用结构: trial structure通用结构: general construction通用结构胶: general structural adhesive应用结构: internet自引用结构: self-referential structure船体用结构钢: hull structural steel海船用结构钢: standard specification for structural steel for ships间接费用结构: burden structure桥梁用结构钢: structural steel for bridge通用结构电机: convenient construction machine; convenientconstructionmachine通用结构分析: analysis of currency structure通用结构计划: mcap土地利用结构: land use structure系统应用结构: architecture systems application; systems application architecture (saa)模拟用结构设计: structure design for simulation通用结构语言标准: sgml软件文件编制用结构记录: structured writing for software documentation锻件用结构钢牌号和力学性能: structural steel grades and mechanical property for forgings用结构化的方法来协调和集成各过程: structured approaches that harmonize and integrate processes造船用结构部件选择的标准导则: standard guide for selection of structural details for shi construction复用: multiplexing; multiplex◇复用表 multi-meter; circuit tester; 复用电桥 multibridge; 复用电压表 multipurpose voltmeter; 复用粘土 rebonding clay; 复用属名 monadelphous homonym; 复用信道 multiplying channel; 复用转换器 transmultiplexer