通信系统

For the instability of the wireless channel and remotion of the terminal, the performance of the wireless channel is not good as the one of the wire channel, which is not fit for transmitting high-speed date.

中文摘要：无线信道的衰落效应和终端的移动严重制约了通信系统的性能，因此克服信道衰落效应，提高频谱利用率，确保数据高效可靠的传输是个非常重要的研究问题。

RF transmitter is an important part of a wireless communication system.

射频发射机是无线通信系统的重要组成部分。

And the results obtained can be instructional on the design of rhombic antenna and over-the-horizon communication system.

结果表明菱形天线具有较好的性能，所得到的结果对该类天线及超视距通信系统的设计有指导意义。

Instead of sunbeams, today's light-wave communication systems use laser light ricochet ing through tiny glass fibers.

今天的光波通信系统利用的不是日光束，而是通过微细玻璃纤维掠射的激光。

Roaming is an important function of mobile communication system.

漫游是移动通信系统的一个重要的功能。

In the network communication system uIP protocol is transplanted and Web Servers function is realized. The system is designed based on LPC2114 MCU with the core of ARM7. It is a universal conversion module between Uart and Ethernet, accordingly connecting the metal tube rotameter to Ethernet.

网络通信系统中移植了μIP协议栈，具备Web服务器的功能，实现了基于ARM7核的LPC2114微处理器的串口到以太网的通用转换模块，从而将金属管浮子流量计接入以太网。

The performance of the RRM algorithm is a key factor that determines the overall performance of the wireless communication system.

调度和无线资源分配是未来无线通信系统中为用户提供高性能服务和有效利用无线资源的关键因素。

This thesis researches the RRM algorithm,which can guarantee the user\'s traffic experience,in the wireless communication system.

该文研究在新一代无线通信系统中保证用户满意度的无线资源管理方法。

The converged voice and data communications system will help Sanitarium reduce operational costs, improve workforce productivity and provide a sound platform for the deployment of high-...

汇流的语音和数据通信系统将有助于降低营运成本精神病院、提高劳动生产率和企业提供良好的平台，为部署高

At last, by composing the model, the scatter communication system is simulated and studied.

最后，本文利用设计的功能模块组成无线散射通信系统进行仿真研究和分析。

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％。