通信系统

A subframe data transmission device for a mobile communication system.

一种用于移动通信系统的子帧数据发送装置。

The optimum detector and a class of suboptimum detectors for the synchronous SSMA system are discussed in this paper.

对同步多址扩频通信系统中的最优检测器和某些准最优检测器进行了讨论。

On this basis, we consider a class of suboptimum detectors for the asynchronous SSMA system whose decision algorithms consists of a linear transformation followed by a set of threshold devices.

在此基础上，针对随机多址扩频通信系统的情况，分别提出了两种线性检测器—最小均方误差检测器和加权最小平方检测器，以及一种非线性检测器—判决反馈检测器，给出了它们的实现原理和方法。

General structure and characteristics of distributed communication system of substation integrated automation are discussed .

论述了分布式变电站综合自动化通信系统的一般结构和特点。

Communications systems, signal transmission in the process will superimposed on the noise, our analysis is us...

通信系统中，信号在传输过程中会叠加上噪声，我们在分析时通常就用高斯白噪声来分析。

In the mobile communication system, the intermediate frequency signal results in the characteristic value is took the appraisal signal quality one kind of standard, how this topic main research is withdraws the intermediate frequency signal the characteristic value,as well as withdraws in the method in each kind to select superiorly withdraws the intermediate frequency signal characteristic value the method.

在移动通信系统中，中频信号得特征值是作为评估信号质量的一种标准，本课题主要研究的是如何来提取中频信号的特征值，以及在各种提取方法中选出最优的提取中频信号特征值的方法。

The properties concerning the symmetry and conjugation of complex multi-variable telecommunication systems, together with their number of states and transfer intensities are also investigated in the paper.

对于多元件的复杂通信系统，本文分析了其对称性、对偶性方面的性质和在状态数、转移强度数等方面的若干数量关系。

Firstly, an attempt is made to synchronise all subscribers (3) of the communications system (1) with the primary time master.

首先尝试使通信系统(1)的所有用户(3)同步于主时间主机。

In a communication system, the amount of time required to attain synchronization.

在通信系统中，需要达到同步的时间总和。

This finding may have significant impact on future design of synchronous cooperative relay communication system.

这一发现可能会对未来的同步协作中继通信系统的设计有显著的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。