Browsing by Subject "Ultrasonics"

Now showing items 1-3 of 3

Design and Implementation of an Indoor Ultrasonic Communication System

Ballal, Tarig ; Saad, Mohamed M. ; Bleakley, Chris (The Institution of Engineering and Technology, 2011-06-22)

In this paper, an indoor communication system using ultrasonic signals is described. The system uses differential binary phase-shift keying (DBPSK) for transmitting binary data as a part of an indoor positioning system. A ...
High Accuracy Reference-free Ultrasonic Location Estimation

Saad, Mohamed M. (IEEE, 2012-06)

This paper presents a novel reference-free ultrasonic indoor location system. Unlike most previous proposals, the mobile device (MD) determines its own position based only on ultrasonic signals received at a compact sensor ...
High-precision robust broadband ultrasonic location and orientation estimation

Gonzalez-Hernandez, Juan ; Bleakley, Chris (IEEE, 2009-10-21)

This paper presents an indoor broadband ultrasonic system for estimation of a mobile device’s 3-D location and three-axis orientation using beacons. It presents the first implementation and characterization of a real ...