Research on the Directional Interferences Canceling

Author

Zhang, Bin

Author_Institution

Coll. of Inf. Sci. & Technol., Qingdao Univ. of Sci. & Technol., Qingdao, China

fYear

2010

fDate

2-4 April 2010

Firstpage

549

Lastpage

552

Abstract

A novel method for the canceling of directional interferences was presented. Tow ship noise is a typical directional interference when towed sonar works, which has bothered sonar researchers for years. Inverse beamforming is a novel method for the canceling of directional interference, but it has its limitation to cancel tow ship noise just because of its multi-path propagation characteristic. Based on inverse beamforming, an iterative inverse beamforming is proposed which could cancel interferences from not only a direction, but a direction band, by virtue of iterative idea. Simulation results indicated the superiority of the improved method compared to inverse beamforming. And the iterative inverse beamforming would be promising in the practical application of directional interference canceling.

Keywords

acoustic signal processing; array signal processing; interference suppression; iterative methods; ships; signal denoising; sonar; directional interferences canceling; iterative inverse beamforming; multipath propagation characteristic; sonar works; tow ship noise; Array signal processing; Educational institutions; Informatics; Information science; Information security; Information technology; Interference cancellation; Marine vehicles; Noise cancellation; Sonar equipment; directional interference; inverse beamforming; iterative inverse beamforming; tow ship noise; towed sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Information Technology and Security Informatics (IITSI), 2010 Third International Symposium on

Conference_Location

Jinggangshan

Print_ISBN

978-1-4244-6730-3

Electronic_ISBN

978-1-4244-6743-3

Type

conf

DOI

10.1109/IITSI.2010.96

Filename

5453684