SHORT RANGE ULTRASONIC COMMUNICATIONS IN AIR USING QUADRATURE MODULATION

Chuan Li, David Hutchins, Roger Green

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.

References

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Paper Citation


in Harvard Style

Li C., Hutchins D. and Green R. (2009). SHORT RANGE ULTRASONIC COMMUNICATIONS IN AIR USING QUADRATURE MODULATION . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2009) ISBN 978-989-674-008-5, pages 100-104. DOI: 10.5220/0002224601000104


in Bibtex Style

@conference{winsys09,
author={Chuan Li and David Hutchins and Roger Green},
title={SHORT RANGE ULTRASONIC COMMUNICATIONS IN AIR USING QUADRATURE MODULATION},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2009)},
year={2009},
pages={100-104},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002224601000104},
isbn={978-989-674-008-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2009)
TI - SHORT RANGE ULTRASONIC COMMUNICATIONS IN AIR USING QUADRATURE MODULATION
SN - 978-989-674-008-5
AU - Li C.
AU - Hutchins D.
AU - Green R.
PY - 2009
SP - 100
EP - 104
DO - 10.5220/0002224601000104