地下通信信道分析与最佳工作频率选择  

Channel Analysis and Optimal Frequency Selection for Underground Communication

作　　者：李彦博[1] 向新[1] 王锋[1] 孙晔[1] 

机构地区：[1]空军工程大学航空航天工程学院,西安710038

出　　处：《科学技术与工程》2014年第1期49-53,共5页Science Technology and Engineering

基　　金：陕西省自然科学基础研究项目(2009JM8001-4);航空科学基金项目(20095596014)资助

摘　　要：针对无线地下通信信道复杂、难以预测的问题,建立了环形天线地下通信电磁波传播模型,比较了磁性天线与电性天线性能,分析了在给定条下所需发射功率及影响通信的各个因素,从而选择最佳工作频率使通信最优化,对于工程实践具有重要的指导意义。In view of the problem of the complexity and difficult to forecast on wireless underground communication, a wave propagation model is established for the loop antenna in the underground commu- nication. Performance of the magnetic antenna and electrical antenna is compared, and the desired trans- mitting power in a given condition and factors affecting the communication are analyzed, thereby selecting the optimal operating frequency to achieve communication optimization. It has very important guiding sig- nificance for engineering practice.

关 键 词：地下通信 环形天线 电磁场 发射功率 最佳工作频率 

分 类 号：TN913.321[电子电信—通信与信息系统]