SODIX IN COMPARISON WITH VARIOUS DECONVOLUTION METHODS

SODIX is a method for the localization of sound sources including the quantification of their directivities. Other source localization methods commonly assume point monopole sources with uniform directivity. The performance of SODIX is compared in this paper with previously published results [9] of conventional delay-and-sum beamforming and the advanced deconvolution methods DAMAS, DAMAS2, CLEAN-SC, TIDY, and LPD by using the same set of array data. The results show that the resolution of SODIX is only slightly inferior to those of the best advanced beamforming methods.

[1]  Sebastien Guerin,et al.  Airframe noise characteristics from flyover measurements and prediction , 2006 .

[2]  Funke,et al.  An extended formulation of the SODIX method with application to aeroengine broadband noise , 2012 .

[3]  S. Brühl,et al.  ACOUSTIC NOISE SOURCE MODELLING BASED ON MICROPHONE ARRAY MEASUREMENTS , 2000 .

[4]  Gary G. Podboy,et al.  Improved Phased Array Imaging of a Model Jet , 2009 .

[5]  Pieter Sijtsma,et al.  CLEAN Based on Spatial Source Coherence , 2007 .

[6]  Stefan Funke,et al.  Noise Source Analysis of an Aeroengine with a new Inverse Method SODIX , 2008 .

[7]  Robert P. Dougherty,et al.  Deconvolution of Sources in Aeroacoustic Images from Phased Microphone Arrays Using Linear Programming , 2013 .

[8]  Robert P. Dougherty,et al.  Extensions of DAMAS and Benefits and Limitations of Deconvolution in Beamforming , 2005 .

[9]  Stefan Funke,et al.  INVERSE METHOD FOR THE ACOUSTIC SOURCE ANALYSIS OF AN AEROENGINE , 2008 .

[10]  Thomas F. Brooks,et al.  A Deconvolution Approach for the Mapping of Acoustic Sources (DAMAS) Determined from Phased Microphone Arrays , 2006 .

[11]  Ennes Sarradj,et al.  A fast signal subspace approach for the determination of absolute levels from phased microphone array measurements , 2010 .

[12]  K. Ehrenfried,et al.  Comparison of Iterative Deconvolution Algorithms for the Mapping of Acoustic Sources , 2007 .

[13]  Geoffrey E. Hinton,et al.  Evaluation of Gaussian processes and other methods for non-linear regression , 1997 .

[14]  Georges Elias,et al.  Level Estimation of Extended Acoustic Sources Using a Parametric Method , 2004 .