Implementation of the split-beam function to Mills cross multibeam echo sounder for target strength measurements - Archive ouverte HAL
Journal Articles ICES Journal of Marine Science Year : 2024

Implementation of the split-beam function to Mills cross multibeam echo sounder for target strength measurements

Abstract

Abstract Modern challenges in the increasing exploitation of aquatic ecosystems require efficient, reliable, and noninvasive technologies to acquire biomass information on a large scale. For the past 40 years, hydroacoustics has been an essential tool to analyse fish populations and their relationship with the environment. Currently, split-beam echo sounders are standard tools used to reliably and accurately record data in oceans, estuaries, and lakes. To maximize the coverage volume and to increase target detection, and therefore data quality, the use of multi-beam echo sounders is a real asset. We propose here an innovative method for target strength (TS) calculation based on the signal from a reversible Mills cross multi-beam sonar, SeapiX (Exail), which also includes the analytical capability of a split-beam echo sounder. This innovative approach provides new original information when using a multi-beam sonar. The case study in Lake Bourget was based on a comparison of the simultaneous recordings of SeapiX and EK80 (SIMRAD) to prove the validity of this multi split-beam processing, as well as to estimate the in situ TS of fish.
Fichier principal
Vignette du fichier
2024_Matte_ICES_J_Marine_Sci.pdf (1.29 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive
Licence

Dates and versions

hal-04648391 , version 1 (15-07-2024)

Licence

Identifiers

Cite

Guillaume Matte, Tehei Gauthier, Nathan Rousselot, Jean Guillard, Marie Lamouret, et al.. Implementation of the split-beam function to Mills cross multibeam echo sounder for target strength measurements. ICES Journal of Marine Science, 2024, ⟨10.1093/icesjms/fsae032⟩. ⟨hal-04648391⟩
42 View
24 Download

Altmetric

Share

More