Title :
Research on the Directional Interferences Canceling
Author_Institution :
Coll. of Inf. Sci. & Technol., Qingdao Univ. of Sci. & Technol., Qingdao, China
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;
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
DOI :
10.1109/IITSI.2010.96
