Research on method of velocity estimation for a moving sound source based on wavenumber spectrum using warping transform
XIE Shiwei
XU Ming
YUAN Xiao
GOU Xindi
Abstract：When the receiver is stationary and the sound source is moving uniformly along a straight line at the same depth,the phase of the received sound pressure signal in the frequency domain changes nonlinearly with time,and the phase linearization can be realized by using warping transform.Firstly,the Warping operator under different motion parameters was constructed,and then the operator was used to resampling the received sound pressure in the frequency domain.Finally,the corresponding wave number spectrum was obtained by Fourier transform of the resampling sound pressure.There-fore,the maximum spectral energy of wave number in a specific interval could be used to estimate the velocity of sound source.In addition,under the condition of low SNR,a speed-wave number spectral energy graph was proposed to estimate the velocity of sound source.Experimental and simulation data verify the effectiveness of the above methods.
Keywords：linearization of the phasewarping transformthe estimation of a moving source
Publication Date：2025-06-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 90-97 )