地下通信

地下通信电缆的牺牲阳极保护

The Corrosion Protection of Underground Communication Cable with Sacrificial Anode

地下通信管道塑料多孔管挤出成型技术与设备

Extrusion technology and equipment of plastics multi-hole pipeline for underground communication pipeline

地下通信光缆工程的质量控制策略探讨

Discuss Quality Control on Strategy in Communications Engineering of Subterranean Optic Fiber Cable

地下通信管道统一建设推行中的问题及思路探讨

Discussion on the problems about the on-going unified construction of Underground Communication Pipeline

雷电辐射场对地下通信电缆的影响

Effects of Lightning Radiation on Underground Communication Cables

地下通信电缆外套金属管道与附近铺设屏蔽线屏蔽效果的比较

Pipeline to its internal communication cables and metallic mitigation line to its nearby underground communication cables

解决地下通信技术难题的方案及关键设备

The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio Communications

架空电力线路与地下通信线路互阻抗的计算结果验证了论文方法的正确性和高效性。

The validity of the method is proved by calculating the mutual impedance between overhead power lines and underground telecommunication lines .

计算结果表明，仅从感性耦合的屏蔽效果考虑，则金属管道和屏蔽线对地下通信电缆屏蔽保护效果基本相同；

The calculation results shows that only considering by shielding inductive coupling , electromagnetic shielding effectiveness of the pipeline and the mitigation line is similar on the whole ;

还简要说明了地下通信管道塑料多孔管的结构、特点和应用，尤其是可满足施放100～300对电缆和96～1000芯光缆的使用要求。

In addition , the structure characteristics and application of the plastics multi-hole pipeline for the underground communication pipeline are simply illustrated , meeting the operational requirement for laying 100-300 pairs of cables and 96-1000 cores of photo-conductive cable in particular .

穿透岩层地下电流场通信信道分析井下粉尘测定研究

Channel analysis on underground mine communication by electrical field through stratum

地下管线对通信电缆的屏蔽效应计算方法

Calculation method of electromagnetic shielding effects of underground pipelines to communication cables

地下感应式通信理论的研究

The Research of Subsurface Induced Communication Theory

地下金属管网对通信线路暂态电磁屏蔽作用的计算

Transient electromagnetic shielding calculation of the underground network of metallic pipelines to the communication lines

地下巷道中无线通信空时编码的研究

Space - Time Coding in Tunnels

在此基础上，进行了地下管线对地下通信电缆的电磁屏蔽系数计算，探讨了屏蔽保护的规律。

Based on the model , the electromagnetic shielding effectiveness of the buried pipeline to communication cables is calculated and the regularity of electromagnetic shielding effectiveness is discussed .

为分析电力线路附近地下金属管网对通信线路的电磁屏蔽作用，给出了同时考虑电力线路与金属管网的感性耦合和阻性耦合作用时地下金属管网电磁屏蔽计算的通用模型。

A universal model is presented to evaluate the shielding effect of underground metallic pipeline networks to communication lines , which considers both inductive and resistive coupling between the power lines and the pipelines .