Can wave direction be measured from an AUV?

Author

Brumley, B. ; Strong, Brandon

Author_Institution

RD Instruments, San Diego, CA, USA

fYear

2003

fDate

13-15 March 2003

Firstpage

140

Lastpage

144

Abstract

AUVs on survey missions in coastal environments provide platforms of opportunity for making directional wave observations. However, there are several complications that arise when wave observations are made from a moving platform. One of these is a Doppler shift in the dispersion relation, which causes correctable distortion in the observed directional wave spectrum. A modified triplet algorithm is described that corrects for platform motion by subtracting bottom-track velocity. The Doppler distortion effect and the algorithm are illustrated using data taken using an ADCP on a moving platform.

Keywords

Doppler shift; ocean waves; oceanographic equipment; oceanographic techniques; underwater vehicles; ADCP; AUV direction measurement; Autonomous Underwater Vehicle; Doppler distortion effect; Doppler shift; bottom-track velocity; coastal environments; directional wave observations; directional wave spectrum; survey missions; triplet algorithm; Acceleration; Business; Current measurement; Dispersion; Doppler shift; Extraterrestrial measurements; Instruments; Oceans; Sea measurements; Underwater vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Current Measurement Technology, 2003. Proceedings of the IEEE/OES Seventh Working Conference on

Print_ISBN

0-7803-7813-X

Type

conf

DOI

10.1109/CCM.2003.1194301

Filename

1194301