SDH has been greatly developed and used as a new transmission technology in the world.
SDH作为新的一代传输技术，已得到了各国的大力开发和应用。
Advanced network management and maintenance capabilities are required to effectively manage the flexibility provided by SDH.
为了有效地发挥SDH提供的灵活性，需要先进的网络管理和维护能力。
The interfaces used in ASON for inter-domain and inter-network communication are described, solutions on ASON and SDH network hybrid networking and inter-connection are presented.
介绍了ASON用于域间和网间通信的接口，并提出了ASON网络与传统SDH传输网实现混合组网和互联互通的解决方案。
In addition, we apply the routing algorithm to search routes in SDH network and realize the resource assignment.
同时，将路由算法应用于SDH传送网的路由搜索，完成了对SDH网络业务资源的规划。
Virtual containers encapsulation rate and SDH network synchronization, the synchronization is different VC.
虚容器的包封速率与SDH网络同步，即不同VC是同步的。
At present, main domestic manufacturers Huawei, ZTE and Fiberhome have SDH-based ASON products.
目前国内的主要设备商华为、中兴、烽火拥有基于SDH的ASON产品。
Low frequency jitters and wanders caused by pointer adjustments in SDH networks have been found to be a big obstacle for the interconnection between SDH and non -sdh networks.
SDH传输网中由指针调整带来的低频抖动和漂移已经成为SDH传输网与其它传输网互通的障碍。
Similar genetic linkages were also found between SDH isozyme and leaf base le, and between SDH isozyme and style length.
SDH同工酶与叶基角以及花柱长度间存在遗传连锁。
Introduces general network synchronization type and working mode, and some basic concept of SDH network synchronization.
本文主要介绍网同步方式与工作模式及SDH网同步的一些基本概念。
Introduces the issues on application of CCTV system based on the MPEG-4 compression, SDH optical transmission and large capacity hard disc storage technologies in urban rail transportation.
介绍了基于MPEG - 4压缩技术、SDH光纤传输技术和大容量硬盘存储技术的电视监控系统在城市轨道交通中的应用问题。
SDH is made from SDH network unit. Its basement of transmission technology is frame structure whose net functions include normal management, trouble management and property management and so on.
SDH由SDH网络单元组成，其传输技术基础是帧结构，其网络功能包括一般性管理、故障管理、性能管理、配置管理、安全管理。
The activity of succinate dehydrogenase(SDH) was assayed with cytochemical method.
以细胞化学法测定琥珀酸脱氢酶（SDH）的活性。
The alarm management of electric power SDH transmission network requires alarm information distribution system with high reliability and stronger real-time.
电力SDH传输网告警管理需要可靠性较高和实时性较强的告警信息发布系统。
With the establishing of verification and test platform for SDH chip, We realize the function simulation, timing simulation and performance test of the IP soft-core.
通过建立SDH芯片验证平台和SDH芯片测试平台，实现IP软核的功能仿真、时序仿真和芯片性能测试。
We use this approach to analyse the SDH telecommunication software which was developed by Lucent Technology Optical Network Company and get high predicting accuracy.
用这种方法对朗讯光网络有限公司开发的SDH通信软件进行了分析，并得到了较高的预测准确率。
The long distance, high precision time synchronization is very important for SDH communication net, control of electric power system and satellite navigation system, etc.
远距离、高精度的时间同步对SDH通信网、电力系统调控和卫星导航系统等有着极其重要的意义。
The major alarm maintenance signal of SDH transmission system are introduced and its implication and failure reason are described.
介绍了SDH传输系统主要告警维护信号，描述了告警维护信号的含义和故障产生原因。
The jitter induced by pointer adjustment is one of the main impairments in SDH network, how to reduce it is a key problems in SDH system design.
SDH指针调整引起的抖动是SDH网中重要的传输损伤，如何抑制指针调整引起的抖动已经成为SDH系统设计中一个关键的问题。
SDH transmission network is a complicated network system, the attendant should accumulate experience and steadily improve fault treatment ability for keeping the network to running normally.
SDH传输网络是一个复杂的网络系统，维护人员必须在实践中不断积累经验，提高网络故障的处理能力。
Further more, the paper puts forward cost structure models of SDH ring and WDM ring and calculates the two rings'costs with varying ring size and traffic volume.
提出了SDH环和WDM环的成本构成模型，计算分析了在不同的环节点数量和不同的业务流量情况下二者的成本。
This paper introduces the characters of resilient packet ring (RPR) technologies, and the advantages of RPR comparing to SDH/SONET and Ethernet when provides data services in ring topology.
介绍了弹性分组环（RPR）技术的特征，将其与SDH/SONET、以太网技术作了对比，以体现其在环型拓扑结构上支持数据业务的优势。
So, it is a very concerned question how the optical network base on SDH system evolve to intelligent light network.
因此，基于SDH体制的光网络如何向智能光网络演进是业界非常关注的问题。
Over Unicom's backbone network, original SDH loop network architecture already fails to meet present capacity requirement, which must be transformed into ASON, especially for the central-east regions.
在联通的干线网上，原有的SDH环网结构已经不能满足当前的容量要求，必须改造成ason网络，特别是中东部地区。
This paper introduces the basic concept and features of SDH as compared with PDH. The available SDH transport equipment and its networking are also briefly introduced.
本文介绍了光同步数字系列的基本概念、特点及其与PDH 的比较，并简要介绍了目前商用SDH传送设备及其组网情况。
A method of selecting the clock sources, which is used in SDH network to auto-select the best clock, is di-cussed.
介绍了一种时钟源选择控制方法，从而在SDH网络中各节点能自动选择最优时钟源，并实现时钟的同步。
This paper discusses the architecture and basic functional requirements of SDH management system, the information modelization of SDH network resources and the establishment of models.
本文论述SDH网络管理系统的体系结构、基本要求和功能描述；论述网络资源的信息模型化管理及信息模型的建立方法。
This thesis focused on SDH communication network protections.
本文研究了SDH通信网的保护问题。
This paper focused on SDH communication network protection.
本文研究了SDH通信网的保护问题。
Finally, when the edge life is exponentially distributed, the paper computes the bounds of all-terminal reliability of a SDH network to demonstrate the method.
最后在网络链路寿命服从指数分布时分析了某SDH传输网络的全端可靠性以及界的计算，以说明本文的方法。
Finally, when the edge life is exponentially distributed, the paper computes the bounds of all-terminal reliability of a SDH network to demonstrate the method.
最后在网络链路寿命服从指数分布时分析了某SDH传输网络的全端可靠性以及界的计算，以说明本文的方法。
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