DOUBLE PULSE TRANSMISSION - DEAD ZONE DECREASING IN ULTRASOUND IMAGING

Ihor Trots, Andrzej Nowicki, Marcin Lewandowski

Abstract

This study investigates a new composing method of double transmission of short coded sequences based on well-known Golay complementary codes, which allows to obtain the higher signal-to-noise ratio (SNR) and decrease dead zone area. The proposed method can potentially find application in small parts ultrasonography and play an important role in examination of superficial structures, e.g. in dermatology, ophthalmology, etc., where using longer coded sequences leads to increase of a dead zone and single pulse transmission of short sequences does not assure sufficient SNR. This paper discusses the results obtained during the examination of four different length pairs of Golay coded sequences excited at 3.7 MHz: the single 64-bits pair of Golay sequences and combined sequences consisting of two 8, 16, and 32-bits Golay codes separated in time. The experimental results have shown that double pulse transmission allows to suppress considerably the noise level, the SNR increases by 5.7 dB in comparison with the single pulse transmission of Golay sequences of the same length. The presented results of this work demonstrate the advantage of double pulse transmission method which enhances SNR while maintaining the dead zone short.

References

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Paper Citation


in Harvard Style

Trots I., Nowicki A. and Lewandowski M. (2009). DOUBLE PULSE TRANSMISSION - DEAD ZONE DECREASING IN ULTRASOUND IMAGING . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009) ISBN 978-989-8111-65-4, pages 416-420. DOI: 10.5220/0001777104160420


in Bibtex Style

@conference{biosignals09,
author={Ihor Trots and Andrzej Nowicki and Marcin Lewandowski},
title={DOUBLE PULSE TRANSMISSION - DEAD ZONE DECREASING IN ULTRASOUND IMAGING},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009)},
year={2009},
pages={416-420},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001777104160420},
isbn={978-989-8111-65-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009)
TI - DOUBLE PULSE TRANSMISSION - DEAD ZONE DECREASING IN ULTRASOUND IMAGING
SN - 978-989-8111-65-4
AU - Trots I.
AU - Nowicki A.
AU - Lewandowski M.
PY - 2009
SP - 416
EP - 420
DO - 10.5220/0001777104160420