Paulo Santos was born in Oporto, Portugal. He received the B.S. degree in Electromechanical Engineering from the University of Beira Interior, Covilhã, Portugal, in 1994, the M.Sc. degree in Electrical and Computer Engineering from the “Instituto Superior Técnico”, Lisbon, Portugal, in 2000, and the Ph.D. degree in Electronics and Telecommunications Engineering from the University of Algarve, Faro, Portugal, in 2012, with the topic “Ocean parameter estimation with high-frequency signals using a vector sensor array”. Since 1995, he has been with the “Instituto Superior de Engenharia (ISE)”, University of Algarve, and is currently an Adjoint Professor with the Department of Electrical Engineering, ISE, where, among others, he teaches measurements and instrumentation and industrial instrumentation. He is a permanent member of the Signal Processing Laboratory (SiPLAB/CINTAL/UALG), University of Algarve, and a Research Member of the Laboratory of Robotics and Systems in Engineering and Science (LARSyS/Lisbon). He has participated in several Portuguese and European projects. His main research interests include underwater acoustics propagation, direction of arrival estimation, and vector sensors. He is an expert of 3-D array beamforming and source localization and is working on the recent field of vector sensor array processing for geoacoustic inversion.