论文标题
浓缩鱼类浅滩的声密度估计
Acoustic density estimation of dense fish shoals
论文作者
论文摘要
声波的多个散射提供了一种无创的方法，用于估计一条浓密的鱼类，在该方法中，传统技术（例如回声计数或回声融合）失败。通过在公开海笼中具有多光束声纳系统的声学实验，可以通过定量观察和解释鱼浅滩中的多个声音散射，尤其是相干的反向散射效果。此外，鱼浅滩的体积扫描允许分离一些单独的鱼，从中可以从中进行目标强度估计。这两种方法的组合允许在富有挑战的浅滩的具有挑战性的情况下进行鱼类密度估计。
Multiple scattering of acoustic waves offers a noninvasive method for density estimation of a dense shoal of fish where traditional techniques such as echo-counting or echo-integration fail. Through acoustic experiments with a multi-beam sonar system in open sea cages, multiple scattering of sound in a fish shoal, and in particular the coherent backscattering effect, can be observed and interpreted quantitatively. Furthermore, a volumetric scan of the fish shoal allows isolation of a few individual fish from which target strength estimations are possible. The combination of those two methods allows for fish density estimation in the challenging case of dense shoals.
