查询词典 multiplexing

Wavelength division multiplexing unit multiplexes optical signal from the parallel optical reception / transmission unit to transmit to transmission line.

波分多路复用单元对来自并行的光学接收／传输单元的多路复用光学信号进行多路复用，发送至传输线。

They are①ANN based nonlinear coding method to reduce coding delay②the conversion method of CBR streams to VBR streams to make the packeting delay negligible③human perception based main and subordinate packet method to reduce the influence of packeting delay④cell selective discarding and datagram selective shorten method to reduce queuing delay by alleviating the load of links⑤multitask cell or datagram multiplexing method to reduce packeting delay.

作者研究的重点，在于提出了若干降低编码、信息分组装配和分组排队时延的新方法，它们是：降低编码时延的ANN非线性编码法、大幅度降低分组装配时延的CBR码流VBR转换法、基于人耳听觉特性的主次信息分组装配降低时延法、新的降低排队时延和网络拥塞状态的信元选择性删除和数据报选择性截短适配法，以及降低分组装配时延的多任务复合装配法。

This paper describes and discusses sub-carrier multiplexing, optical carrier suppression and separation, quartered modulation technologies, compares and analyzes not only the strengths and limitations of these technologies, but also the vista of practical application.

本文介绍多种光标记交换技术，包括副载波复用、载波抑制和分离、正交调制，比较各自的优缺点及实用前景。

Moreover, the high frequency radio can also be used in the optical label switching. The subcarrier multiplexing optical label and optical carrier suppression and separation optical label are based on modulating lightwave by radio, which were studied much and maybe have a good future.

另外，在光标记交换领域，利用高频的无线信号调制光波实现的副载波光标记和光载波抑制光标记现已有一些研究，这两种标记实现方案有很好的应用前景，但还有一些问题需要深入研究，本论文对SCM光标记信号的传输距离受限问题和OCSS光标记分组的全光波长变换问题进行了深入研究，并得到了一些有价值的结论。

For eliminating clock synchronization error in orthogonal frequency division multiplexing systems, a clock synchronization method worked over multipath fading channels was proposed.

为消除时钟同步误差对正交频分复用系统的影响。提出了一种可工作在多径衰落信道下的时钟同步方法。

In a method for retrieving sequences having a minimum PAPR in an OFDM (orthogonal frequency division multiplexing) system, by using characteristics in which all sequences of the OFDM system are classified into cosets having the same PAPR, PAPRs of sequences in which early two elements are fixed as '0' are calculated. A sequence having a minimum PAPR is selected from among the calculated PAPRs, and sequences allocated to the coset in which the selected sequence is included are retrieved as sequences having the minimum PAPR.

在一种用于在OFDM通信系统中恢复具有最低PAPR的序列的方法中，通过利用在其中将OFDM系统的所有序列分成具有相同PAPR的同余类序列的特性，计算两个开始项被固定为&0&的序列的PAPR，在所计算的PAPR中选择具有最小PAPR的序列，并且恢复分配至在其中包含所选同余类序列的序列作为具有最小PAPR的序列。

In wireless broadband digital communication, Inter-Symbol Interference caused by time disperse of radio channel is one of main factors that limit bandwidth of communicated information and system performance of communication. In receiver, Orthogonal Frequency Division Multiplexing system can easily cancel ISI and equalize frequency-selective fadings that are both caused by time disperse of radio channel.

在这一系统中，无线信道时延扩展引起的符号间干扰是限制传输性能和信息速率的主要因素之一；而在消除符号间干扰和均衡由无线信道时延扩展引起的频率选择性衰落方面，正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术具有明显优势。

The relay adopts orthogonal frequency division multiplexing for transmission, symbols in the same carriers are forwarded by the relay STBC cooperation, and BF is executed between antennas of the relay.

中继采用正交频分复用传输，相同载波上的符号由不同中继通过空时分组码协作进行转发，同一中继内的天线间进行波束成形。

Different local features of binary image are extracted simultaneously by using the multiplexing Haar wavelets.

利用Haar子波的复合，并行提取了二值图象的不同局域特征。

Subcarrier multiplexed addressing and wavel ength conversion based on cascaded semiconductor optical amplifier perform the f unctions of subcarrier signal with data multiplexing and transparent transmissio n of payload.

副载波复用和基于级联半导体光放大器的波长变换，实现了射频副载波路由信息与基带IP数据包的同步复用和IP数据包的透明传输。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。