干线网

黑龙江省SDH干线网北环在线优化改造的研究与实现

The Research and Realization of Heilongjiang Province SDH Backbone Network Northern Ring Optimizing and Changing On-linely

作为优化设计DMS系统传输参数的例子，改建后的干线网的传输特性和眼图性能良好，基本上能得到理想的结果。

For a example in optimization of designing the DMS system , the rebuilt backbone network has good transmission characteristic and fine eye figure , which can be a good results .

CATV干线网建设和城域网改造的技术方案

Technique Plan for CATV Trunk Line Network Construction and City Proper Change

双向HFC网络的设计分为两大部分：光纤干线网与有源同轴分配网设计，无源同轴分配网设计。

Two-way HFC network design was divided into two parts : fiber trunk networks and current feed coax networks design , passive coax networks design .

研究表明，应用该方法，DMS能传输800km改建后的干线网，而保持良好的传输特性和眼图性能。

Application this method , the DMS has good transmission characteristic and fine eye figure in the 800 km rebuilt backbone network .

利用非等温等离子体化学气相沉积（PCVD）工艺制备了一种适合于大容量高速率长途干线网与城域网的中芯下陷型纤芯结构非零色散位移光纤。

A non zero dispersion shifted fiber with core depressed profile for large capacity and high bit rate backbone network and metropolitan area network is designed and fabricated by plasma chemical vapor deposition ( PCVD ) process .

并结合我国目前长途传输网的现状，论述了在我国长途干线网中配置DXC设备的必要性及其配置方案。

Combined with current situation of long ─ distance transmission network in China , it describes the necessity of configuring long ─ distance trunk network with DXC equipment and the configuration plan .

移动省内干线网组网设计的探讨

Discussion about the design of the mobile trunk network in a province

光缆干线网设计中有关问题的探讨

The Problems to be Discussed in Optical Trunk Network Design

数字交叉连接设备在国家干线网中的应用

Application of DXC Equipment to Backbone Transmission Network in China

用于省内公路干线网规划研究的启发式模型

The heuristic method model of a province 's road main lines network planning

雄心勃勃的新公路干线网。

An ambitious system of new arterial highways .

然后，在分析分组无线干线网的特点的基础上，提出了五种流量和拥塞控制的算法。

Then , with the features of Packet Radio Backbone Network , five algorithms of flow and congestion control are brought forward .

光纤由于其巨大带宽和极低的传输损耗而迅速替代铜缆而成为干线网的主要传输介质。

Optical fiber communication becomes the dominated method of communication in the backbone because of its tremendous bandwidth and extremely low transmission loss of fibers .

光纤通信技术继续保持迅速的发展，从点到点的信息传输到网络应用，从干线网到用户网，正逐渐深入到通信的各个领域，各种新技术得到开发利用。

Optical fiber communication keeps in rapid development , from trunk lines to subscriber networks , stepping into more and more areas of the modern communication .

中国电信作为全国最大的固网及宽带业务运营商，在互联网骨干网、长途干线网和本地接入网等方面具有很强的竞争优势。

As the largest fixed-line and broadband operators , China Telecom has strong competitive advantages in internet backbone , toll telecommunication network and local access network aspects .

阐述了人工智能技术在邮政运输调度系统中的应用，介绍了全国邮政干线网邮运调度专家系统的研究目标、控制方案、知识组织与分布及系统的控制结构。

This paper introduces Artificial Intelligence technologies and its applications in postal transporting system , including the study target , control project , knowledge organization and distribution , and its control structure .

针对天津市二级光缆干线网工程的设计，就光缆网的可靠性，光纤类型、光缆容量及扩容方式的选择及中继段长度的计算等问题进行了探讨。

The reliability of optical cable networks , optical fiber types , optical fiber capacity , pair gain mode selection and length calculation for trunk selection are discussed according to the Tianjin secondary optical cable trunk network engineering design .

集成光波导器件具有体积小、功能集成度高、适于批量生产等优点，在光通信干线网的超高速传输、以及接入网的光纤到户技术中，得到了愈益广泛的应用。

Integrated optical waveguide devices own the advantages of small volume , high integration of functions , suitable for mass-production . They are widely used in the ultra-high-speed transmission of Optical Communication truck network , as well as the FTTH technology .

最后依据公路网规划原则和目标对晋江市公路网按照功能和作用从骨架网、干线网和农村公路网三个层次进行布局规划与分析。

Finally , according to the principles and objectives of road network planning in Jinjiang , the thesis also gives the layout plans of road network in three levels such as skeleton network , backbone network and the rural road network .

建设山西省G.655光缆干线传输网

To Build Shanxi G.655 Main Line Transmission Network

最后对江苏某二级干线环网进行了系统升级考虑，对该系统传输DMS进行了数值模拟。

In the last of chapter , system upgrading is considered on a secondly main ring network in Jiang Shu province , the numerical simulation is also conducted on this DMS transmission system .

目前，对于有线电视（CATV）网络的建设，本地接入网应采用具有宽带综合业务能力的HFC结构，而远程超干线传输网应采用SDH数字骨干网。

At present time , to the establishment of CATV net-work , local access network should be HFC structure that can provides broad integrated services and super trunk transmis-sion network of far distance should be SDH digital backbone network .

干线公路网交通量综合预测法研究

Study on Comprehensive Method to Forecast Traffic Volumes in Arterial Highway Network

浅析陕西省内二级干线传输网的建设

Initial Analysis on Construction of Secondary Trunk Transmission Network in Shan'xi Province

干线公路网等级结构优化的目标规划模型及算法

Goal Programming Model and Algorithm for Arterial Highway Network Grade Structure Optimization

区域干线公路网规划布局方案评价方法研究

Study on Evaluation Methods for the Arterial Highway Network Planning

广播电视干线传输网的构建思路

Ideas on Construction of Backbone Transmission Network in Broadcast & TV Information Industry

重要度联合区位市域干线公路网布局法

Associated Method of Important Degree-traffic Area Location for Regional Trunk Road Network Layout

江苏省干线航道网规划研究及评价

Research and Evaluate on Main Waterway Net Planning of Jiangsu Province in China