Suppressing reverberation by multipath separation for improved buried object detection

Author

Kirsteins, I.P. ; Fay, John ; Kelly, James

Author_Institution

Naval Undersea Warfare Center, Newport, RI, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

236

Abstract

This paper addresses the problem of using a vertical aperture to suppress the interference caused to SAS by surface bounce path reverberation components decorrelated by the rough sea surface. Using at-sea gathered SACLANTCEN vertical array acoustic data, we characterize the reverberation vertical properties and investigate the separation of the direct and surface bounce path reverberation and target echo components. We propose two implementations of the PCI method of interference cancellation and demonstrate with actual data that they are effective in separating the reverberation in the vertical domain

Keywords

array signal processing; buried object detection; interference suppression; reverberation; sonar arrays; sonar detection; synthetic aperture sonar; PCI method; SAS; at-sea gathered SACLANTCEN vertical array acoustic data; direct bounce path reverberation; improved buried object detection; interference cancellation; multipath separation; reverberation vertical properties; rough sea surface; surface bounce path reverberation; target echo components; vertical aperture; Buried object detection; Frequency; Object detection; Reverberation; Rough surfaces; Sea surface; Sediments; Sonar detection; Surface roughness; Synthetic aperture sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS, 2001. MTS/IEEE Conference and Exhibition

Conference_Location

Honolulu, HI

Print_ISBN

0-933957-28-9

Type

conf

DOI

10.1109/OCEANS.2001.968732

Filename

968732