Vol. 27, issue 03, article # 14

Abstract:

In this paper, we analyze statistical characteristics of envelopes of acoustic signals propagating along short near-surface paths. Experimental data are processed to study the density of probability distribution of envelopes for carrier frequencies of 500 and 5 000 Hz. The repetition of the considered distributions is determined, and their correlation with turbulence is estimated.

Keywords:

atmosphere, sound, propagation, envelope, statistics, turbulence

References:

1. Lukin V.P., Botygina N.N., Emaleev O.N., Antoshkin A.V., Konjaev P.A., Gladkih V.A., Mamyshev V.P., Odincov S.L. Odnovremennye izmerenija strukturnoj harakteristiki pokazatelja prelomlenija atmosfery opticheskim i akusticheskim metodami // Optika atmosf. i okeana. 2011. V. 24, N 10. P. 852–857.
2. Fedorov V.A. Tochnostnye harakteristiki opredelenija vremennyh zaderzhek pri kvadratichnoj interpoljacii maksimumov obobshhennyh vzaimno-korreljacionnyh funkcij. Pt. 2. Sluchajnye oshibki // Optika atmosf. i okeana. 2012. V. 25, N 8. P. 678–683.
3. Collier S.L., Wilson D.K. Performance bounds for passive sensor arrays operating in a turbulent medium: Plane-wave analysis // J. Acoust. Soc. Amer. 2003. V.113, N 5. P. 2704–2718.
4. Kobzar' A.I. Prikladnaja matematicheskaja statistika. M.: Fizmatlit, 2012. 816 p.
5. Rukovodstvo po gidrologicheskoj praktike. V. II. Upravlenie vodnymi resursami i praktika primenenija gidrologicheskih metodov. ВМО-№ 168. 6 izdanie. Chair, Publications Board, World Meteorological Organization (WMO), 7 bis, avenue de la Paix, P.O. Box 2300, CH-1211 Geneva 2, Switzerland, 2012. 324 p.