29 November 2016 Frequency structure infrasound signals from terrestrial explosions low power
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Proceedings Volume 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 100356U (2016) https://doi.org/10.1117/12.2249254
Event: XXII International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2016, Tomsk, Russian Federation
Abstract
The paper presents the results of the wavelet analysis of infrasound signals from ground-based low-power explosions. It was found that in most cases, the spectral structure of the infrasound signal has the character of a monotonic decrease of the oscillation period. For these types of signals from the explosion with the power tab order of 0.01 × 10-3 kT at a distance of up to 300 km infrasound signal spectral structure has the character of a linear decrease of the period of pressure fluctuations from time to time according to the law T = Т0 - B × t, where the most probable values of the initial period Т0 take values from 0.97 and index decreasing in the period - 0.25.
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A. V. Solovyov, D. S. Provotorov, Y. S. Rybnov, "Frequency structure infrasound signals from terrestrial explosions low power", Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 100356U (29 November 2016); doi: 10.1117/12.2249254; https://doi.org/10.1117/12.2249254
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