PHYSICS AND MATHEMATICS

On recording of air-acoustic signal of moving source by cross-shaped antenna

Yu. M. Zaslavsky

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: Characteristics of the output signal of cross-shaped array of receiving microphones are investigated. The sound is generated by air-acoustic source moving along rectilinear trajectory with constant velocity firstly approaching to the array and then moving off from its center. Operations of harmonic and pulse radiation are considered. Response amplitude on the antenna output is plotted as function of the azimuth angle of the source.

Keywords: microphone array, acoustic signal, moving source.