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Motion-Induced Noise in Electrode-Pair Extremely Low Frequency (ELF) Receiving Antennas
IEEE Transactions on Communications, 1974The 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.
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Journal of Geophysical Research, 1961
Calculations by Raemer of the terrestrial ELF noise spectrum which are based on a sharply bounded homogeneous ionosphere of frequency-dependent height and conductivity are extended to a nonhomogeneous ionosphere of exponential conductivity profile. The exponential ionosphere model provides slightly lower resonant frequencies and less damping of the ...
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Calculations by Raemer of the terrestrial ELF noise spectrum which are based on a sharply bounded homogeneous ionosphere of frequency-dependent height and conductivity are extended to a nonhomogeneous ionosphere of exponential conductivity profile. The exponential ionosphere model provides slightly lower resonant frequencies and less damping of the ...
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Advanced Optical Materials
Abstract Extremely low‐frequency (below 10 Hz) current‐induced magnetic field detection has significant applications in high‐voltage DC systems, lithium‐ion battery diagnostics, and industrial process monitoring. Nitrogen‐vacancy (NV) ensembles magnetometry typically employs flux concentrators to enhance magnetic detection sensitivity,
Chunlong Li +9 more
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Abstract Extremely low‐frequency (below 10 Hz) current‐induced magnetic field detection has significant applications in high‐voltage DC systems, lithium‐ion battery diagnostics, and industrial process monitoring. Nitrogen‐vacancy (NV) ensembles magnetometry typically employs flux concentrators to enhance magnetic detection sensitivity,
Chunlong Li +9 more
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Space Science Reviews, 1980
The equations for the Earth-ionosphere cavity resonance fields are given and some of the approximations used in their derivation are indicated. Typical electric and magnetic 5 to 20 Hz Schumann resonance field intensities are listed and compared with the level of other natural and man-made electromagnetic noise.
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The equations for the Earth-ionosphere cavity resonance fields are given and some of the approximations used in their derivation are indicated. Typical electric and magnetic 5 to 20 Hz Schumann resonance field intensities are listed and compared with the level of other natural and man-made electromagnetic noise.
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Bioelectromagnetics
ABSTRACT Occupational noise and extremely low‐frequency electromagnetic fields (ELF‐EMF) are common in power plants and represent important risk factors that may contribute to oxidative stress. This study examined how simultaneous exposure to these hazards affects oxidative stress biomarkers in workers under real ...
Sediqeh Jafarimanesh +4 more
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ABSTRACT Occupational noise and extremely low‐frequency electromagnetic fields (ELF‐EMF) are common in power plants and represent important risk factors that may contribute to oxidative stress. This study examined how simultaneous exposure to these hazards affects oxidative stress biomarkers in workers under real ...
Sediqeh Jafarimanesh +4 more
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A Stochastic Resonance-Based Detection Method for Extremely Low Frequency Under Impulsive Noise
2023 3rd International Conference on Communication Technology and Information Technology (ICCTIT), 2023Zhipeng Chen +3 more
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Noises Within Extremely Low Frequencies
Prace Naukowe Instytutu Telekomunikacji i Akustyki Politechniki Wroclawskiej, 1978openaire +1 more source