Beam Forming Algorithm Based On Symmetric Alpha-stable Distribution

DOI

10.2991/meic-14.2014.186How to use a DOI?

Keywords

Symmetric; -Stable Dsitribution; Beam Forming; Fractional Lower-order Moment; reverberation; Sonar

Abstract

Via modeling the reverberation noise by means of the symmetric -stable distribution, and the second-order and above order moments of distribution are nonexistent, the fractional lower-order moment and zero-order moment concepts are put forward and the beam forming algorithms on account of them are proposed to instead of the beam forming algorithms on account of second-order moments. Taken full advantage of the feature of no second-order or above order existing in the symmetrical -stable process, the reverberation noise which possesses pulse characteristic can be strongly inhibited by these two algorithms, resulting in overcoming the shortage that the traditional beam former on the basis of second-order statistical moment was not suitable for reverberation noise. Compared with the traditional ones, more efficient algorithm performance and better robustness are showed out by the experiments. And the experimental results which based on sea -test data also show that these two algorithms are very efficient.

Copyright

© 2014, 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/).

Download article (PDF)

TY  - CONF
AU  - Cheng Peng
AU  - PingBo Wang
AU  - Jincun Jiang
AU  - Pengkun Zhang
PY  - 2014/11
DA  - 2014/11
TI  - Beam Forming Algorithm Based On Symmetric Alpha-stable Distribution
BT  - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 830
EP  - 834
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-14.2014.186
DO  - 10.2991/meic-14.2014.186
ID  - Peng2014/11
ER  -