On Robust Estimation of Water Current Using a Frequency Domain Approach: The Symmiktos Method

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Thomas L Lagö, Per Eriksson, Mikael Åsman
Title: On Robust Estimation of Water Current Using a Frequency Domain Approach: The Symmiktos Method
Conference name: Oceans 94/OSATES Conference on Oceans Engineering for Today's Technology
Year: 1994
Pagination: 435-440
ISBN: 0-7803-2056-5 (hft.) 0-7803-2057-3 (inb.) 0-7803-2058-1 (mikrofiche)
Publisher: IEEE
City: BREST, FRANCE
ISI number: A1994BB95H00077
Organization: Blekinge Institute of Technology
Department: Dept. of Signal Processing (Institutionen för signalbehandling)
Dept. of Signal Processing S-372 25 Ronneby
+46 455 780 00
http://www.hk-r.se/isb/isb_en.html
Authors e-mail: Thomas.Lago@isb.hk-r.se
Language: English
Abstract: The estimation of water current by using acoustic Doppler current meters (ADCM) is a well-known method. Determination of the water current is based on the Doppler shift caused by the movement of small particles in the water, related to the current as an average. These movements cause a Doppler shift with an assumed Gaussian-shaped distribution in time. This assumption is valid for clean water and water where one particle size dominates the scattering and thereby the Doppler shift. If many bubble size are involved in the scattering, the Gaussian-based estimators may generate errors.
Subject: Signal Processing\Hydro-Acoustics
Edit