TY - CONF T1 - Optimal test-point positions for calibrating an ultrasonic LPS system T2 - 13th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2008) Y1 - 2008 A1 - Daniel Ruiz A1 - Ureña, J. A1 - José Manuel Villadangos A1 - Gude, I. A1 - J.J. Garcia A1 - Álvaro Hernández A1 - Ana Jimenez JF - 13th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2008) ER -