Improved noise tolerance for sonar applications in critical environments

Author

Neretti, N. ; Intrator, Nathan ; Cooper, Leon N.

Author_Institution

Inst. for Brain & Neural Syst., Brown Univ., Providence, RI

fYear

2005

fDate

March 31 2005-April 1 2005

Firstpage

94

Lastpage

96

Abstract

Sonar systems are a key element in harbor security applications. One of the major challenges in their utilization is the presence of high levels of noise and cluster. In this paper, we analyze the distribution of errors in the time-delay estimation for a sonar system using a train of pulses and show that a robust fusion of echoes from multiple pings can greatly improve its resilience to noise. As a result, an increased range of operation can be achieved in applications to extremely noisy environments such as harbors, ports and costal facilities

Keywords

delays; security; signal denoising; sonar imaging; error distribution; harbor security; noise tolerance; sonar applications; time-delay estimation; Acoustic noise; Delay estimation; Equations; Histograms; Noise level; Noise robustness; Signal to noise ratio; Sonar applications; Sonar detection; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence for Homeland Security and Personal Safety, 2005. CIHSPS 2005. Proceedings of the 2005 IEEE International Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-9176-4

Type

conf

DOI

10.1109/CIHSPS.2005.1500619

Filename

1500619