TY - CONF T1 - Link Budget of Low Bandwidth and Coded Ultrasonic Indoor Location Systems T2 - International Conference on Indoor Positioning and Indoor Navigation (IPIN’11) Y1 - 2011 A1 - E. García A1 - J. J. García A1 - Ureña, J. A1 - S. Holm JF - International Conference on Indoor Positioning and Indoor Navigation (IPIN’11) PB - IEEE CY - Guimaraes, Porugal VL - 1 SN - 978-1-4577-0086-6 ER -