N2 - Sound localization problems are usually tackled by the acquisition of data from phased microphone arrays and the application of acoustic holography or beamforming algorithms. However, the number of sensors required to achieve reliable results is often prohibitive, particularly if the frequency range of interest is wide. It is shown that the number of sensors required can be reduced dramatically providing the sound field is time stationary. The use of scanning techniques such as “Scan & Paint” allows for the gathering of data across a sound field in a fast and efficient way, using a single sensor and webcam only. It is also possible to characterize the relative phase field by including an additional static microphone during the acquisition process. This paper presents the theoretical and experimental basis of the proposed method to localise sound sources using only one fixed microphone and one moving acoustic sensor. The accuracy and resolution of the method have been proven to be comparable to large microphone arrays, thus constituting the so called “virtual phased arrays”. L1 - http://www.journals.pan.pl/Content/101432/PDF/09_paper.pdf L2 - http://www.journals.pan.pl/Content/101432 PY - 2014 IS - No 1 EP - 88 DO - 10.2478/aoa-2014-0009 KW - beamforming KW - source localization KW - virtual phased arrays KW - measurement techniques A1 - Comesana, Daniel Fernández A1 - Holland, Keith R. A1 - Escribano, Dolores García A1 - de Bree, Hans-Elias PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 39 DA - 2014 T1 - An Introduction to Virtual Phased Arrays for Beamforming Applications SP - 81 UR - http://www.journals.pan.pl/dlibra/publication/edition/101432 T2 - Archives of Acoustics