DocumentCode
3272227
Title
Improved sensitivity in grounding search system using TV signal for phase reference
Author
Tominaga, Tetsuya ; Kuramoto, Shoichi ; Kuwabara, Nobuo
Author_Institution
NTT Multimedia Network Labs., Tokyo, Japan
fYear
1999
fDate
1999
Firstpage
544
Lastpage
547
Abstract
Grounding search systems need improved sensitivity to search more effectively for grounding routes. The proposed method changes the phase reference signal source from the search signal to a TV signal. A minimum signal level of 17 dBuV at the antenna terminal is needed to obtain the phase reference. Experimentation using the new system demonstrated an improvement of 40 dB in the minimum detectable level and the phase measurement deviation improved from ±18 degrees to ±8 degrees
Keywords
antennas; earthing; electromagnetic compatibility; electromagnetic interference; television broadcasting; TV signal; antenna terminal; grounding routes; grounding search systems; minimum detectable level; phase measurement deviation; phase reference; search signal; sensitivity improvement; Buildings; Dipole antennas; Frequency; Grounding; Phase detection; Phase measurement; Power system protection; Receiving antennas; Signal detection; TV;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location
Tokyo
Print_ISBN
4-9980748-4-9
Type
conf
DOI
10.1109/ELMAGC.1999.801385
Filename
801385
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