TY - JOUR T1 - Simultaneous Round-Trip Time-of-Flight Measurements with Encoded Acoustic Signals JF - IEEE Sensors Journal Y1 - 2012 A1 - María del Carmen Perez A1 - Carlos De Marzziani A1 - Ureña, J. A1 - Álvaro Hernández A1 - J. J. García CY - UK VL - 12 IS - 10 ER -