Events

BeBec 2012, Germany - 22-23th February 2012

Microflown Technologies will present the paper

"Adapting Beamforming Techniques for Virtual Sensor Arrays"

"Most source localization problems have been assessed so far using beamforming techniques on the data acquired with conventional sensor arrays. However, the number of transducers can be reduced dramatically if the sound field can be assumed time-stationary by using data acquired with scanning techniques, such as “Scan&Paint”. This method is based on mixing tracking information with the signals recorded in order to characterise variations across a sound field. With one PU intensity probe, sound pressure, particle velocity or sound intensity can be assessed. Furthermore, relative phase of the sound field can be preserved by using an additional fixed reference sensor, such as a pressure microphone. Therefore, average magnitude and phase information of discrete spatial areas can be obtained, as if the field were measured with a conventional array. This paper is focused on exploring the requirements needed to apply different beamforming techniques to a set of data acquired with virtual arrays. Furthermore, results from two different experiments are presented: localization of noise sources in low and high frequencies".

Presentor: Daniel Fernandez Comesaña

All information concerning BeBec conference you can find here.

Internoise 2012

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