Sciweavers

LOCA
2005
Springer
14 years 4 months ago
Improving the Accuracy of Ultrasound-Based Localisation Systems
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...
Hubert Piontek, Matthias Seyffer, Jörg Kaiser
MOBISYS
2005
ACM
14 years 10 months ago
WALRUS: wireless acoustic location with room-level resolution using ultrasound
In this paper, we propose a system that uses the wireless networking and microphone interfaces of mobile devices to determine location to room-level accuracy. The wireless network...
Gaetano Borriello, Alan L. Liu, Tony Offer, Christ...