Improving the accuracy of ultrasound–based localisation systems

Authors:
Hubert Piontek;Matthias Seyffer;Jörg Kaiser
Affiliations:
Universität Ulm;Universität Ulm;Otto–von–Guericke–Universität Magdeburg
Venue:
LoCA'05 Proceedings of the First international conference on Location- and Context-Awareness
Year:
2005

Citing 4
Cited 0

The anatomy of a context-aware application

MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The Cricket location-support system

MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
The cricket compass for context-aware mobile applications

Proceedings of the 7th annual international conference on Mobile computing and networking
Implementing a Sentient Computing System

Computer

Quantified Score

Hi-index	0.00

Visualization

Abstract

We present an improvement to ultrasound–based indoor location systems like Cricket [1]. By encoding and modulating the ultrasound pulses, we are able to achieve greater accuracy in distance measurements. Besides improving the distance measurements, we improve the position update rate by synchronizing the active beacons. We also propose a method that could further improve the update rate by superimposing encoded ultrasound pulses. Further, an experimental evaluation of our improvements is presented.