Ultrasonic LPS adaptation for smartphones. - David Gualda; María del Carmen Pérez; Jesús Ureña; Juan C. García 001; F. Daniel Ruiz; Enrique García; Alejandro Lindo (IPIN, 2013)

Ultrasonic signal acquisition module for smartphone indoor positioning. - Alejandro Lindo; María del Carmen Pérez; Jesús Ureña; David Gualda; Enrique García; Jose M. Villadangos (ETFA, 2014)

Fusion of data from ultrasonic LPS and isolated beacons for improving MR navigation. - David Gualda; Jesús Ureña; Juan C. García 001; Enrique García; F. Daniel Ruiz; Alejandro Lindo (I2MTC, 2014)

Locally-Referenced Ultrasonic - LPS for Localization and Navigation. - David Gualda; Jesús Ureña; Juan C. García 001; Alejandro Lindo (Sensors, 2014)