Performance limitations on travel time and phase data extraction for bathymetry side-scan sonars

Author

Sun, J. ; Tyce, R.C.

Author_Institution

Dept. of Ocean Eng., Rhode Island Univ., Narragansett, RI, USA

fYear

1993

fDate

18-21 Oct 1993

Abstract

Bathymetry side-scan sonars (BASS), using two rows of transducers and the phase measuring technique, offer a simple approach to single swath mapping sonar systems which integrate both seafloor bathymetry and imagery. This paper discusses both BASS system design and the environmental factors which influence our ability to accurately determine travel time and arrival angle-the two parameters required to determine bathymetry. The authors have recently examined bathymetric performance limitations for an upgraded GLORIA system belonging to the USGS. Theoretical GLORIA phase data are presented along with the first field data. Phase difference estimates using different phase estimation algorithms are presented

Keywords

acoustic imaging; acoustic signal processing; bathymetry; geophysical techniques; oceanographic techniques; seafloor phenomena; sonar; BASS; USGS; bathymetry; bathymetry side-scan sonar; geophysical method; imagery; measurement technique; ocean seafloor topography; performance limitation; phase data extraction; phase estimation algorithm; phase measuring technique; side scan sonar; signal processing; single swath mapping; system design; travel time; two rows of transducers; upgraded GLORIA; Data mining; Oceanographic techniques; Oceans; Phase estimation; Phase measurement; Sampling methods; Sea floor; Sea measurements; Sonar measurements; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '93. Engineering in Harmony with Ocean. Proceedings

Conference_Location

Victoria, BC

Print_ISBN

0-7803-1385-2

Type

conf

DOI

10.1109/OCEANS.1993.326069

Filename

326069