在水文调查中,用多波束回声测深仪测量鱼类活动,作为额外的环境数据

Marie Lamouret, Arnaud Abadie, C. Viala, P. Boissery, N. Thirion-Moreau
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引用次数: 2

摘要

现代多波束回声测深仪(MBES)是一种先进的主动水声探测仪器,可以安装在远洋船舶上,也可以安装在轻型船上。尽管它们的多功能性使科学家能够进行各种环境研究,但它们的潜力很少得到充分利用。单次数据采集巡航不仅能够显示海底后向散射,而且还可以通过水柱图像从水下站点提供鱼类活动的估计。这项工作的目的是开发一些(自动)信号处理技术来检测、分析和分类在水柱中观察到的物体,重点是鱼类活动,提供鱼类积累和分类,但也有一些比较分析以及海底分类。
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Measuring fish activities as additional environmental data during a hydrographic survey with a multi-beam echo sounder
The modern multi-beam echo sounders (MBES) are advanced instrumentation for active underwater acoustic surveys that can be boarded on oceanic vessels as well on light crafts. Although their versatility allows scientists to perform various environmental studies, their potential is seldom fully exploited. A single data acquisition cruise is not only able to display the seabed backscatter, but also provide an estimation of the fish activities from an underwater site thanks to water column imagery. This work is aiming at developing some (automatic) signal processing techniques to detect, analyse and classify objects observed in the water column with a focus on fish activities to provide fish accumulation and classification but also some comparative analyses along with the seafloor classification.
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