Probability density distribution of wideband 2-6 MHz terrestrial radio noise

The probability distribution of terrestrial noise and interference was measured in 50-KHz bandwidths in the 2-6 MHz range before and after signal processing for noise reduction. By excising both impulsive noise bursts and narrowband interference (117-Hz resolution bands), signal processing can lower...

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Bibliographic Details
Published in:I.R.E. transactions on antennas and propagation 1979-01, Vol.27 (1), p.107-111
Main Authors: Katz, A., Meltz, G., Mullen, J.
Format: Article
Language:English
Subjects:
Bandwidth
Gaussian noise
Interference
Narrowband
Noise measurement
Noise reduction
Probability distribution
Signal processing
Signal resolution
Wideband
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Summary:The probability distribution of terrestrial noise and interference was measured in 50-KHz bandwidths in the 2-6 MHz range before and after signal processing for noise reduction. By excising both impulsive noise bursts and narrowband interference (117-Hz resolution bands), signal processing can lower the high-noise tail of the distribution by 25-35 dB at the first percentile. After excising, the sensitivity of detection is then correspondingly improved, approaching to within 5-8 dB of the sensitivity achieved in Gaussian noise of the same power level.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1979.1142041