University of Antwerp, Belgium.
University of Cincinnati, United States.
J Theor Biol. 2018 Nov 7;456:305-314. doi: 10.1016/j.jtbi.2018.07.027. Epub 2018 Aug 10.
Echolocating bats are the only mammals engaging in airborne pursuit. In this paper, we implement a reactive model of sonar based prey pursuit in bats. Our simulations include a realistic prey localization mechanism as well as a model of the bat's motor behavior. In contrast to previous work, our model incorporates bats' ability to execute rapid saccadic scanning motions keeping the prey within its field of view. Decoupling the flight direction from the gaze direction allows our model to capture erratically moving prey using reactive control. We conclude that the rapid shifts in gaze direction allow bats to deal with the narrow field of view provided by their sonar system.
回声定位蝙蝠是唯一在空中追捕猎物的哺乳动物。在本文中，我们在蝙蝠中实现了基于声纳的猎物追踪的反应模型。我们的模拟包括一个现实的猎物定位机制以及蝙蝠的运动行为模型。与以前的工作不同，我们的模型结合了蝙蝠执行快速扫视运动的能力，使猎物保持在其视野内。将飞行方向与注视方向解耦可以使我们的模型使用反应控制来捕获不稳定移动的猎物。我们的结论是，注视方向的快速变化使蝙蝠能够处理其声纳系统提供的狭窄视野。
