Measuring the Impulse Response of an Acoustic MLS Signal in a Moving Medium

A. A. Belous; A. I. Korol’kov; A. V. Shanin; N. N. Ostrikov

doi:10.1134/S1063771019010019

Measuring the Impulse Response of an Acoustic MLS Signal in a Moving Medium

作者: Belous A.A.¹, Korol’kov A.I.¹, Shanin A.V.¹, Ostrikov N.N.²
隶属关系:
1. Faculty of Physics, Moscow State University
2. Central Aerohydrodynamic Institute (TsAGI), Moscow Complex
期: 卷 65, 编号 1 (2019)
页面: 60-66
栏目: Atmospheric and Aeroacoustics
URL: https://journals.rcsi.science/1063-7710/article/view/186775
DOI: https://doi.org/10.1134/S1063771019010019
ID: 186775

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详细

The paper presents the results of an experiment that uses the MLS technique to measure the impulse response when a signal passes through an air jet. The data are compared with the numerical simulation results obtained by solving the equation for sound propagation in a steady flow using a finite-difference method. It is shown that the longitudinal component of the flow causes drift and focusing of the signal.