, Validations measurements has shown the possibility of our algorithm to analyze rotating sources, and to separate stationary of rotating ones. The test case on a "in duct fan", has shown its capability to correctly track a high speed fan. For further analysis on such device, green functions (in free field condition in our application) has to be estimated closer to the real environment

P. Sijtsma, S. Oerlemans, and H. , Holthusen ? Location of rotating sources by phased array measurements, CEAS Aeroacoustics Conference, 2001.

A. , Guédel ? Acoustique des ventilateurs -Génération du bruit et moyen de réduction, Editions PYC LIVRES, 1999.