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|Title:||Some Observations on Very Low Frequency Spectra of Leader Pulses|
|Authors:||Gupta, S. P.|
|Abstract:||A detailed experimental study has been carried out to see the influence of pause time on vlf spectra radiated by stepped leaders of lightning discharge. It is found that the vlf amplitude spectrum of a series of leader pulses will be broad when the mean pause time between successive leader pulses is of the same order as its own standard deviation. However, if the standard deviation is very small compared to the mean pause time of stepping, the spectra would have a number of peaks at repetition frequency of the stepping, and its harmonics. Moreover, two types of stepped leader (ɑ and β-type) have been distinguished in terms of their spectral shapes.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.04(1) [March 1975]|
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