通信系统

The symbols cause interference between is a wireless communication system must be considered in the design of high-speed transmission problem, especially in the environment.

由此引起的符号间干扰是无线通信系统设计中必须考虑的问题，大学论文网 www.wnwu.com 特别是在高速传输的环境中。

The findings presented in this dissertation are of significance to the design of high-speed wireless systems.

本文的研究为高速无线通信系统的设计提供了一种参考。

ABSTRACT This thesis investigates the key techniques that are involved in the frequency hopping data communication system.

本文研究的对象是跳频数据通信系统的关键技术与其实现。

This kind of antenna can be used in hopping frequency communications.

该天线可以用于跳频通信系统中。

Prediction method of long-term statistics of hydrometeor -induced cross-polari{ation is very important in designing satellite communication frequency re-use systems above 10 GHz utilizing orthogonal polarizations.

水凝物的交叉极化预报模式对10GHz以上频段使用正交极化频率复用的卫星通信系统设计具有重要意义。

High speed and cheap wide band web make it possible to transmit a mass of medical image in long distance.

图象存档及通信系统实现了临床医学图象的有效管理和共享，目前已在国内大中型医院得到了比较广泛的应用。

Dr Barrett proposes that the immersion heater elements be turned on and off remotely using ripple control - a communication system with transmissions sent through the mains electricity supply as high-frequency pulses.

"我们可以通过波纹式控制遥控浸入式加热器（一个传输电源形式为高频率脉冲的通信系统）上的一种小的开关接收这些信号，根据信号提供的能源供应量来控制加热器的运作"Barrett博士说。

First, mathematical foundation of synchronization, i.e. the theory of parameter estimation is introduced. Then, DA/DD or NDA timing synchronization methods based on the ML estimation of timing parameter are presented. They are all widely applied in actual digital communication systems. Interpolation theory in digital signal processing has application in timing synchronization, which makes the sampling clock independent of the timing control so that timing adjustment is realized completely through digital disposal. The issue of interpolation in timing synchronization is discussed.

首先，介绍了定时同步实现的数学基础，即信号参数估计理论；从定时参数的最大似然估计出发，介绍了基于数据辅助的定时同步方法和基于非数据辅助的定时同步方法，他们在实际的数字通信系统中均有广泛应用；论文探讨了数字信号处理中插值理论在定时同步中的应用，它使得接收端的采样时钟独立于定时控制，定时调整完全通过数字处理方法得以实现。

Information Tianjin Industrial University School of micro-communications systems.

天津工业大学信息学院的微型通信系统。

Information Tianjin Industrial University School of micro-communications sy...

天津工业大学信息学院的微型通信系统。不小心弄来的。

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％。