@article{fdi:010064316, title = {{E}fficient multibeam sonar calibration and performance evaluation}, author = {{P}errot, {Y}annick and {B}rehmer, {P}atrice and {R}oudaut, {G}ildas and {G}erstoft, {P}. and {J}osse, {E}rwan}, editor = {}, language = {{ENG}}, abstract = {{Q}uantitative applications of mobile multibeam sonar in aquatic ecology and fisheries require accurate and efficient in-tank calibration methodologies. {C}alibration factors for a {S}imrad {SM}20 multibeam sonar are experimentally extracted thereby enabling sonar estimation of target strength and volume backscattering strength. {M}easured and modeled sonar characteristics are systematically compared and show good overall correlation. {D}ue to the limited angular span of the sonar head array, well quantified sonar operation is restricted to an equatorial angular sector of only 80° (vs. rated 120°) in 'imaging' mode. {I}n 'echo-sounder' mode, the 'high' power transmit setting appears to introduce artifacts. {A} routine in-tank measurement procedure is described which for given multibeam sonar minimizes the time required for quality multibeam calibration.}, keywords = {{PECHE} ; {ESTIMATION} {DE} {STOCK} ; {PROSPECTION} {ACOUSTIQUE} ; {PROSPECTION} {ELECTRIQUE} ; {SONAR} ; {CALIBRAGE} ; {MILIEU} {MARIN} ; {METHODOLOGIE}}, booktitle = {}, journal = {{I}nternational {J}ournal of {E}ngineering {S}cience and {I}nnovative {T}echnology}, volume = {3}, numero = {4}, pages = {808--820}, ISSN = {2319-5967}, year = {2014}, URL = {https://www.documentation.ird.fr/hor/fdi:010064316}, }