Proceedings of the 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering 2015

Nonlinear Transform CMA for Underwater Acoustic Channel under Impulsive Noise Environment

Authors
Ying Xiao, Yuhua Dong, Chunjie Li
Corresponding Author
Ying Xiao
Available Online December 2015.
DOI
https://doi.org/10.2991/icmmcce-15.2015.71How to use a DOI?
Keywords
Blind Equalization; Impulsive Noise; Underwater Acoustic Channel; Nonlinear Transform
Abstract
The traditional constant modulus algorithm (CMA) can’t ensure robust convergence performance under impulsive noise environment, hereby a blind equalization by CMA with nonlinear transformation carrying on the received signal was proposed. The impulsive noise can be suppressed effectively by sine transform, in which the linear interval factor and the scale factor are set to keep the scatter plot of the output consistent with the send signal. By embedding nonlinear transformation in CMA blind equalization, the robust convergence performance can be obtained under the impulsive noise environment. The simulation results under the shallow sea channel show that compared with fractional low order CMA and CMA improved by error nonlinear transforming, the nonlinear transformation CMA has the fastest convergence rate and the lowest steady-state residual error. Meanwhile, the nonlinear transformation CMA has highest convergence ratio under different general signal to noise ratio.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2015 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering
Part of series
Advances in Computer Science Research
Publication Date
December 2015
ISBN
978-94-6252-133-9
ISSN
2352-538X
DOI
https://doi.org/10.2991/icmmcce-15.2015.71How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Ying Xiao
AU  - Yuhua Dong
AU  - Chunjie Li
PY  - 2015/12
DA  - 2015/12
TI  - Nonlinear Transform CMA for Underwater Acoustic Channel under Impulsive Noise Environment
BT  - 2015 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering
PB  - Atlantis Press
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmcce-15.2015.71
DO  - https://doi.org/10.2991/icmmcce-15.2015.71
ID  - Xiao2015/12
ER  -