Title :
Motion-Induced Noise in Electrode-Pair Extremely Low Frequency (ELF) Receiving Antennas
Author :
Burrows, Michael L.
Author_Institution :
Massachusetts Institute of Technology, Lexington
fDate :
4/1/1974 12:00:00 AM
Abstract :
The pressure fluctuations in the turbulent boundary layer surrounding the towed antenna cable cause it to vibrate in the geomagnetic field and thereby generate noise. This noise mechanism is the dominant one in current long antennas. Its effect can be reduced only by increasing antenna diameter and length. Tension, stiffness, and damping have no effect. Noise voltage spectra derived from pressure fluctuation data show striking agreement with those measured.
Keywords :
Antenna noise; ELF antennas; Geomagnetism; Underwater antennas; Damping; Fluctuations; Frequency; Geomagnetism; Geophysical measurement techniques; Ground penetrating radar; Low-frequency noise; Noise generators; Receiving antennas; Voltage;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1974.1092213
