Li, Chuan, Hutchins, David A. and Green, Roger, 1951- (2009) Short range ultrasonic communications in air using quadrature modulation. In: International Conference on Wireless Information Networks and Systems, Milan, Italy, July 07-10, 2009. Published in: WINSYS 2009: Proceedings of the International Conference on Wireless Information Networks and Systems pp. 100-104.

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Abstract

A study has been undertaken of ultrasonic communications methods in air, using a quadrature modulation method. Simulations were first performed in order to establish the likely performance of Quadrature Phase Shift Keying (QPSK) over the limited bandwidth available in an ultrasonic system. QPSK modulation was then implemented within an experimental communication system, using capacitive ultrasonic sources and receivers. The results show that such a system is feasible in principle for communications over distances of several metres, using frequencies in the 200-400 kHz range. Data rate is typically at 200 kbps.

Item Type:	Conference Item (Paper)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	WINSYS 2009: Proceedings of the International Conference on Wireless Information Networks and Systems
Publisher:	INSTICC: Institute for Systems and Technologies of Information, Control and Communication
ISBN:	978-989-674-008-5
Editor:	Obaidat, MS and Caldeirinha, R
Official Date:	2009
Number of Pages:	5
Page Range:	pp. 100-104
Identification Number:	10.1109/TUFFC.2009.1289
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Conference Paper Type:	Paper
Title of Event:	International Conference on Wireless Information Networks and Systems
Type of Event:	Conference
Location of Event:	Milan, Italy
Date(s) of Event:	July 07-10, 2009
URI:	http://wrap.warwick.ac.uk/id/eprint/6525

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