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