A Steered-Response Power Algorithm Employing Hierarchical Search for Acoustic Source Localization Using Microphone Arrays. - Leonardo O. Nunes; Wallace Alves Martins; Markus V. S. Lima; Luiz W. P. Biscainho; Maurício do Vale Madeira da Costa; Felipe M. Goncalves; Amir Said; Bowon Lee (IEEE Trans. Signal Process., 2014)