“Inverted” acoustic navigation system also measurers sound speed at towed vehicle

Author

Bjorkheim, Oyvind ; Robinson, Larry J. ; Blackinton, Grant ; Jubinski, Paul

Author_Institution

Acoustic Marine Syst. Inc., Redmond, WA, USA

fYear

1993

fDate

18-21 Oct 1993

Abstract

An “Inverted” acoustic navigation system (AMSNAV) is being developed jointly by Acoustic Marine Systems and Seafloor Surveys International to provide reliable position information for deep towed sonar survey operations. The acoustic navigation signal is also used for accurately determining sound speed at the towed vehicle, eliminating errors caused by sound speed uncertainties when converting the measured phase angles to tow vehicle bearing. The measured sound speed also allows for increased sonar data accuracy, especially important for bathymetric mapping

Keywords

acoustic imaging; bathymetry; geophysical equipment; geophysical techniques; navigation; oceanographic techniques; position measurement; seafloor phenomena; sonar; AMSNAV; Acoustic Marine Systems; Seafloor Surveys International; acoustic positioning; apparatus equipment; bathymetry; deep towed sonar; geophysical method; inverted acoustic navigation system; marine vehicle; measurement technique; navigation; ocean; position determination; seafloor geology; seafloor topography; sonar imaging; sound speed; towed vehicle; Acoustic measurements; Acoustic noise; Marine vehicles; Phase measurement; Position measurement; Sea floor; Sonar equipment; Sonar measurements; Sonar navigation; Velocity measurement;

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.1993.326143

Filename

326143