高压塔对短波测向站的无源干扰影响评估研究  

Research on Passive Jamming Assessment of High-voltage Towers on Shortwave Direction-finding Stations

作　　者：冯卫娜 Feng Weina(Station 292,NRTA,Shandong 266206,China)

机构地区：[1]国家广播电视总局二九二台,山东266206

出　　处：《广播与电视技术》2024年第7期116-121,共6页Radio & TV Broadcast Engineering

摘　　要：随着国内经济和电力建设的持续发展,各个地区的电力建设对无线电监测的影响日趋凸显,尤其是高压塔无源干扰对短波测向站的影响。本文重点分析了高压塔作为金属再次辐射体产生的谐振频率点和保护间距,并根据实际工程情况构建双列高压塔模型、天线阵影响模型以及测向系统评估模型,评估给出了高压塔线路对中大基础短波测向站系统的性能影响结论,为实际系统站点建设提供了参考指导依据。With the development of the domestic economy and power tower construction,the impact of power tower construction in various regions on radio monitoring is becoming increasingly prominent.Especially the passive jamming caused by the power tower is largely interfering with the shortwave direction-finding stations.This paper focuses on the analysis of the resonant frequency points and guard interval generated by the high-voltage tower as the metal secondary radiator.We build the double-row high-voltage tower model,antenna array influence model,and direction-finding system evaluation model according to the actual engineering situation.The evaluation provides the conclusion that the high-voltage tower line has an impact on the performance of the medium and large basic shortwave direction-finding station system.This article provides a reference and guidance basis for the actual system construction.

关 键 词：短波 测向站 高压塔 无源干扰 保护间距 谐振点 

分 类 号：TN98[电子电信—信息与通信工程]