直放站MFD在客舱(行政只)。
在我国移动通信网络中采用了大量的直放站设备。
A large number of Repeaters are applied in the current mobile communication networks.
与此同时。直放站的引入也增加了网络拓扑的复杂性。
However, the introduction of repeater also increases the complexity of network topology.
课题的任务是CDMA宽带直放站系统的研发与调试。
The task of the project is the R&D of CDMA broad band repeater.
目前，射频预失真是宽带直放站所采用的主要功放线性化技术。
RF predistortion is the main power amplifier linearization technique used for wideband repeater at present.
室外直放站系统的设计主要包括稳定性设计和覆盖设计两个方面。
Outdoor repeater system mainly covers design and stability of the two aspects of the design.
因此，毫无疑问光纤直放站在WCDMA系统中会起到重要的作用。
Therefore the fiber optic repeater will play an important role in WCDMA system.
作为网络覆盖的一种有效的辅助手段，直放站技术得到了广泛地应用。
The technology of repeater as one assistant method of network coverage has been applied widely.
实际应用证明：该类型直放站在理论和技术实现方面都是可行的和有效的。
According to the application of this type CDMA repeater, we can see that this type repeater is viable and effective both in theory and technique.
直放站监控系统主要采用短消息传递数据，是无线远程监控系统的典型案例。
Repeater monitoring and controlling system USES Short Message as the main data transport technique, it is a typical case of wireless widespread monitoring and controlling system.
本文首先介绍了直放站的相关原理与技术，作为对直放站光模块应用的介绍；
The paper introduced the technology of fiber-optic repeater which use the optical transceiver, and discussed the theroy of circuirt design of the module.
摘要：本文介绍了光纤直放站的工作原理、传输方式、使用特点、应用及原则。
Abstract: : This paper introduces work principle, the transmission way, service characteristics, application and principles of fiber optic repeater.
功率放大器作为干线放大器和直放站中的关键部件，其性能对系统有较大影响。
As the key part of the trunk amplifier and repeater, power amplifier plays an important role in these systems.
介绍光纤直放站原理、组网方式、设备特点以及在既有铁路电气化改造中的应用。
This paper introduces the principle, networking style, characteristics of fiber-optic repeater, and its applications in the existing railway electrification.
WCDMA光纤直放站光收发一体模块是WCDMA光纤直放站系统的核心部件。
The optical transceiver module is the most important part in the WCDMA optical repeater system.
在采用LCX的区段，由于时延限制，提高光纤直放站输出电平不能增加覆盖范围。
In the LCX section, the coverage range cannot be increased due to the time-limited delay by increasing the output-electrical level of optic-fiber Repeaters.
而直放站天线是直放站的重要组成部分，直接影响到直放站的覆盖范围和信号质量。
And the repeater antenna is an important part of the repeater system, which has a direct affect on coverage and signal quality.
文章作了仲恺农学院南区宿舍电梯信号盲区的覆盖方案，是一个典型的直放站应用工程。
The design to cover the south area of Zhongkai agriculture college dormitory, which is blind signal area, is a representative project using the repeater.
提出在网络覆盖优化应用中，PAS直放站的选取原则和基本要求，并举出具体的实际应用案例。
In the application of cover optimization of network, the authors put forward also principle and basic requirements for choosing PAS repeater; and enumerate specific cases of application in fact.
在直放站系统中加入监控系统可以提高直放站的智能化程度，使直放站在配置和使用时非常灵活。
Joining the monitoring system into the system of Repeaters can enhance the aptitude degree of the repeater and make it agility to configure and use the repeater.
通过测试，平台能够正确且稳定的收发短信，并已成功应用于贵州移动直放站监控系统的通信平台中。
The platform can correctly and stably receive and send short message through testing and has been successfully applied in the communication platform of Guizhou Mobile Repeater Monitoring System.
目前，直放站已成为提高运营商网络质量、解决网络盲区或弱区问题、增强网络覆盖的主要手段之一。
At present, in order to improve the network's quality, solve the network's blind spots or weak areas and enhance the network's coverage, the repeater has already been one of the principal means.
提出了一种实用的应用于现有无线通信直放站的具有频谱检测、自激检测和隔离度测试功能的单元设计方案。
This paper proposes a practical plan for a unit with functions of spectrum monitoring, self-excitation detection and isolation degree test, which is suitable for current wireless relay station.
该WCDMA射频光模块已参加了直放站厂家的现场测试，各项指标都满足WCDMA的入网标准，取得了较满意的结果。
This WCDMA rf optical module has passed the filed test for repeater supplier, all the parameters meet the access standard for WCDMA and achieves good performance.
本论文的研究目的就是设计一种WCDMA射频光模块，以满足WCDMA光纤直放站的设计需求，实现通信网络的覆盖。
The purpose of this paper is to design a WCDMA RF optical module, which can fulfill the need of WCDMA fiber optic repeater and realize the coverage of WCDMA network.
数字直放站采用数字中频处理技术方式并通过光纤实现远距离信号传输，此对系统中的锁相源的相位噪声提出了很高的要求。
In digital repeater, the application of digital intermediate frequency technology and realization of optical fiber transmission for distance will require for little Phase Noise of Phase-Locked Source.
该系统主要采用小灵通基带芯片ML7338（ARM7TDMI核）和RDA5206射频模块，实现对射频信号的解调，同时对基带信号重新编码再调制发射，很好地解决了普通直放站射频干扰问题。
The ML7338(ARM7TDMI core) and RF module RDA5206 are used to demodulate RF signals, recode, remodulate and transmit baseband signals, thus solving the RF interference problem in traditional stations.
该系统主要采用小灵通基带芯片ML7338（ARM7TDMI核）和RDA5206射频模块，实现对射频信号的解调，同时对基带信号重新编码再调制发射，很好地解决了普通直放站射频干扰问题。
The ML7338(ARM7TDMI core) and RF module RDA5206 are used to demodulate RF signals, recode, remodulate and transmit baseband signals, thus solving the RF interference problem in traditional stations.
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