Shaping the acoustic images of objects

Abstract

An acoustic signal propagating from some source, is picked up by a totality of microphones located at a distance less than the wavelength of the most high-frequency component of the signal. We analyze the spectrum of the signal received by each microphone, and estimate its parameters as compared to signals from other microphones. Then we obtain the solution of an equation system in the form of geometric coordinates of the signal sources and of their spectral composition, which are used for shaping the acoustic image of the signal source.