Research on a Novel Denoising Method of Ultrasonic Measurement Signal

DOI

10.2991/icmra-15.2015.118How to use a DOI?

Keywords

Wavelet threshold denoising; threshold function; ultrasound signal

Abstract

A wavelet threshold denoising method is proposed. The new threshold functions in the method overcome not only the constant deviation between the estimated wavelet coefficients and the decomposition wavelet coefficients in the soft threshold function, but also the discontinuance of the hard threshold function. Compared with several existing threshold functions, the new threshold function is continuous and higher - order derivative. The noise at the boundary of signal can be eliminated by the proposed method. Simulation results confirm that the method is more effective than existing methods in low SNR.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lanyong Zhang
AU  - An Cao
AU  - Yixuan Du
PY  - 2015/04
DA  - 2015/04
TI  - Research on a Novel Denoising Method of Ultrasonic Measurement Signal
BT  - Proceedings of the 3rd International Conference on Mechatronics, Robotics and Automation
PB  - Atlantis Press
SP  - 607
EP  - 612
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmra-15.2015.118
DO  - 10.2991/icmra-15.2015.118
ID  - Zhang2015/04
ER  -