A Novel Broadband Ultrasonic Location System

Hazas, Michael and Ward, Andy (2002) A Novel Broadband Ultrasonic Location System. In: UbiComp '02: Proceedings of the 4th international conference on Ubiquitous Computing, 2002-09-292002-10-01.

[img]
Preview
PDF (Hazas02_ANovelBULS.pdf)
Hazas02_ANovelBULS.pdf

Download (421kB)

Abstract

Indoor ultrasonic location systems provide ne-grained position data to ubiquitous computing applications. However, the ultrasonic location systems previously developed utilize narrowband transducers, and thus perform poorly in the presence of noise and are constrained by the fact that signal collisions must be avoided. In this paper, we present a novel ultrasonic location system which utilizes broadband transducers. We describe the transmitter and receiver hardware, and characterize the ultrasonic channel bandwidth. The system has been deployed as a polled, centralized location system in an of ce. Test results demonstrate that the system can function in high levels of environmental noise, and that it has the capability for higher update rates than previous ultrasonic location systems.

Item Type:
Contribution to Conference (Paper)
Journal or Publication Title:
UbiComp '02: Proceedings of the 4th international conference on Ubiquitous Computing
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qa75
Subjects:
ID Code:
13070
Deposited By:
Deposited On:
30 Jun 2008 14:44
Refereed?:
Yes
Published?:
Published
Last Modified:
06 Jun 2020 08:11