In this paper, we consider the problem of acoustic source localization using distributed microphone arrays. Time differences of arrival (TDOAs) are estimated using a recently proposed method based on joint direction of arrival (DOA) and range estimation. The TDOAs are used to estimate the location of an acoustic source using a recently proposed method, based on a 4D parameter space defined by the 3D location of the source, and the TDOA. The performance of the proposed method for acoustic source localization is compared to generalized cross-correlation with phase transform (GCC-PHAT), and a method based on joint DOA and pitch estimation, using synthesized harmonic signals with varying source position. Results show a decrease in the error of the estimated position when joint DOA and range estimation is used for TDOA estimation, compared to the GCC-PHAT and joint DOA and pitch methods.
|Tidsskrift||Asilomar Conference on Signals, Systems and Computers. Conference Record|
|Status||Udgivet - 2014|
|Begivenhed||2014 48th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, USA|
Varighed: 2 nov. 2014 → 5 nov. 2014
|Konference||2014 48th Asilomar Conference on Signals, Systems and Computers|
|By||Pacific Grove, CA|
|Periode||02/11/2014 → 05/11/2014|