
doi: 10.1250/ast.10.189
This paper proposes the identification and separation method of multiple sound sources on a single moving object. The proposed method is based on the compensation of the Doppler effect for a specific sound source and uses the difference of temporal characteristics between the specific sound source and others. After deriving both of observed and compensated spectra in a general form, we discuss the frequency shift of two sound sources model. Then simple models composed of two moving sources which radiate sinusoidal waves are simulated, and the results show the effectiveness of the proposed method. The proposed method is effective only for narrow band or sinusoidal signal, because this method depends on the temporal characteristics of frequency shift due to the movement of sound sources.
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