查询词典 multiplexing

As a parallel transmission technique with multi-carriers, Orthogonal Frequency Division Multiplexing is very suitable for high data rate transmission because it has the advantages of being robust to frequency selective fading, high spectrum efficiency and simple equalizer.

正交频分复用作为一种多载波并行传输技术，能够有效对抗多径信道的频率选择性衰落，同时具有较高的频谱利用率，接收端的均衡也很简单，非常适合于高速率数据传输。

The objective of cell relay is to develop a single high- speed network based on a switching and multiplexing scheme that works for all data types.

信元中继的目的是在所有数据类型均适用的交换和多路复用方案基础上，开发高速传输网络。

The method includes techniques of spectral time sequence multiplexing and spectral separation.

本发明公开了一种高速复杂流场的全场光学测量方法与测量装置，属于流场测试技术领域。

The stabling center frequency technology for transmitter in wavelength devision multiplexing system is very important.

波分复用系统光源中心频率的稳定技术是该系统的关键技术之一。

Based on ML detection, subchannel code distance allocation precoding is proposed for spatial multiplexing MIMO systems.

当发射机知道MIMO信道的完全信息时，根据等效子信道传输模型构造了线性预编码矩阵。

The invention discloses a method for dynamic channel allocation in TDD-CDMA mobile communication system. Based on the distance between mobile station and subzone base station BS, mobile stations MS are classified. Code tract in same group of code track (carrier frequency + time slot) is allocated to the mobile station with nearer distance. MS with different distances have different requirements of emission power. Whether crossed time slot code track group can be used or not, and use of group of code track with what kind of multiplexing factor need to be determined.

本发明公开了一种TDD－CDMA移动通信系统的动态信道分配方法，是将移动台MS按照与本小区基站BS的距离进行分类，同一个码道组中的码道分配给距离相近的移动台MS；同时不同距离的MS对发射功率的要求不同，对相邻小区的干扰也不同，系统根据MS对发射功率的要求，确定其是否可以使用交叉时隙码道组和使用哪种复用因子的码道组。

The invention is used for realizing the frequency-division multiplexing synchronical transmission of the broadcasting TV signals, which can decrease the same-frequency interference of the crossing area of the broadcasting TV carrier signals and reduce system cost, thereby causing the system debug to be simpler.

本发明用于实现广播电视信号的频分复用同步发射，降低广播电视高频载波信号的相交区域的同频干扰，降低系统成本，使得系统调试更加简单。

It is a multi-service platform which can provide QoS-assured IP service and traditional time division multiplexing service simultaneously.

可以同时提供具有QoS保证的IP业务和传统TDM业务。

ABSTRACT Optical time division multiplexing is one of the effective methods to enhance the capacity of optical fiber communication systems and networks and it is very important for the development of new generation communication network.

光时分复用技术是光纤通信系统与网络扩容的有效方法之一，对发展新一代通信网具有重要意义。

Derived by ''.'time'.'' division multiplexing.

时间'。''分割成多路复用的信道。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样