通信的

The PLC technology can effectively solve the problem of distribution networks, it is the best means of communication for remote ammeter reading and energy management.

PLC通信技术可以有效地解决配网通信问题，是实现远程抄表和电量管理的最佳通信方式。

With the programmed control telephone、optical transportation、digital communication、and so many ways, Antu can meet the demands from every social stratum.

拥有了程控电话、光纤传输、数据通信等多种通信手段，通信能力及技术装备水平可满足社会多层次的需求。

with the development of satellite navigation communication,antenna is a very important unit,performance of the satellite navigation communication system is affected by it partly.a new type of bifilar helix for satellite navigation communication system is introduced,and the traving-wave bifilar helix is analyzed briefly.meanwhile,the design and the test results are given.the results show that the antenna possesses excellent circular hemispherical beam with wide angle circular polarization and better impedance match,and has a compact structure and high integration.it can be applied in caps systems successful.

小 摘要：随着卫星导航通信技术的迅速发展，天线作为卫星导航通信系统中的重要部分，在一定程度上决定着卫星导航通信系统的性能。介绍一种用于卫星导航通信系统的双臂螺旋天线，讲述爬行波式螺旋天线的设计过程，并给出最终测试结果。结果表明，该天线具有优良的圆对称半球波束，良好的广角圆极化特性和优良的阻抗匹配特性，其结构简单、紧凑，为通信入站回传提供了一种优良的选择。

Power control is one of the necessary key techniques for mobile communication systems. The frame structure of WCDMA communication system is different from those CDMA commination systems, which have only one type of traffics. In addition, multimedia services have different quality of service requirements. Thus the power control for WCDMA communication system will different from that in narrow band CDMA communication systems.

功率控制是CDMA移动通信系统中必不可少的关键技术之一，WCDMA移动通信系统的结构不同于单一业务的CDMA移动通信系统，且多媒体业务有不同的服务质量要求，因此，WCDMA多媒体移动通信系统中的功率控制将不同于单一业务的CDMA移动通信系统中的功率控制。

For wireless communication, channel diversity is an effective method to achieve reliable communication and improve the system performance.

对于无线通信系统来说，信道分集是实现可靠通信、提高通信性能的有效方法。

Lastly, the communication mode and the communication protocol of the communication system in DAS are discussed.

最后，论文讨论了配电网通信系统的通信方式和通信规约的选择，提出了一种基于Internet的通信方式。

With the success in the fields of space communication, fiber communication and storage industry, LDPC is becoming a powerful competitor.

因此，LDPC 码迅速成为信道编码领域的新宠，在无线通信、深空通信、有线通信以及存储工业等各个领域展开了应用。

The modularized control program is developed with ladder chart to implement functions of system startup and shutdown,bin pump cycle control,fault alarm and so on.

同时，PLC系统通过相应的通信模块挂在分散控制系统通信总线上，实现数据通信，以便DCS系统掌握各辅助工艺系统情况，协调全厂工作。

According to the model, the interference characteristic and communication performance of the stratospheric system were analyzed.

提出了一种平流层通信与地面蜂窝通信频谱共用的系统模型，并根据该模型分析了平流层通信系统所受干扰的特性以及此时的通信性能。

Limited company of technology of Beijing gold dagger is big communication holds water at be being registered formally in August 2005, company headquarters is located in Beijing, it is a company of new and high technology that pursues communication technology and communication software.

北京金戈大通通信技术有限公司于2005年8月正式注册成立，公司总部位于北京，是一家从事通信技术和通信软件的高新技术公司。

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％。