Simplified optimal line selection for acoustic localization in the presence of reverberation

The problem of acoustic source position estimation in reverberant environments has been tackled in different ways. The authors have recently proposed a valid solution which shows good results even in very hard conditions in terms of reverberation. Although the estimator is indicated for a real-time implementation as long as it can be solved in a closed form, in this paper the authors present a simplified version of the estimator in order to significantly reduce the complexity of the previous realization. A direct comparison among the two estimators will be shown, additionally the estimator can be considered also a robust time difference of arrival estimator in the presence of reverberation.