通信系统

This paper studies the performance of the system of UWB wireless communications in the multi-user environment.

本文在多径与多用户环境下，对超宽带无线通信系统性能进行了相关的理论研究。

In order to improve the performance of wavelength division multiplexing communication systems, the influence of stimulated Raman scattering is researched .

为了改善光纤波分复用通信系统的性能，研究了受激喇曼散射的影响。

As a kind of open, digital, bidirection, multistation communication system, fieldbus has been developed and applied greatly in many fields in recent years.

现场总线作为一种开放的、全数字化、双向、多站的通信系统，近年来得到了迅猛的发展和应用。

NCC is the core of VSAT satellite communications system.

网控中心是VSAT卫星通信系统的核心。

Design and implement network monitor and control system.

与中心站通信系统的设计与实现。

This noise generator used the new FPGA device, and we made use of some given functions from the device to reduce the design difficulty. This generator improved the agility of circuit debugging, and it can be used in the testing of communication system under many circumstances.

这种噪声生成器与传统数字电路所组成的噪声生成器相比，采用了新型的FPGA器件，通过利用其中的一些既有功能大大降低了设计的难度，提高了电路调试的灵活性，可用于多种环境下的通信系统测试。

The noise immunity is a main standard of the communication system .

抗噪性能是通信系统的主要指标之一。

Even circuit theory may not be relevant to a person designing telecommunication systems that use off-the-shelf components.

即使电路理论未必适合一个人设计的通信系统，使用现成的组件。

Lz In this paper, based on B / S of the instant messaging system design and implementation process.

本文概述了基于B/S模式的即时通信系统的设计与实现过程。

It's a one-way communication system.

这是一个单向的通信系统。

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％。