METHOD OF POSITIONING AUDIO SIGNAL SOURCE USING SOUND RANGING SYSTEM Russian patent published in 2020 - IPC G01S5/18 G01S3/80 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustics, particularly to methods of determining coordinates of a sound source in three-dimensional space. Method of positioning an audio signal source using a soundmeter system is based on the installation of sound receivers in points with prepared coordinates. Signals from sound receivers are transmitted to a time scale, zero of which is formed by the first incoming signal, range differences are defined as the product of sound velocity on the time interval between the moments of arrival of signals. Sound receivers and audio signal sources are located at different altitude positions. Coordinates of the sound signal source in three-dimensional space are determined by solving a system of linear equations: k₁x₀+p₁y₀+S₁z₀ = −Ψ₁; k₂x₀+p₂y₀+S₂z₀ = −Ψ₂; k₃x₀+p₃y₀+S₃z₀ = −Ψ₃. At that, importance factors for each coordinate (k_i, p_i, s_i) and right parts (Ψ_i) is determined from known coordinates of the sound receivers and range differences.

EFFECT: high accuracy and shorter time for determining coordinates of the sound source.

1 cl, 4 dwg