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Characterization of objects by electrosensing fish based on the first order polarization tensor

机译：通过基于一阶极化张量的鱼的电感应来表征物体

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摘要

Weakly electric fish generate electric current and use hundreds of voltage sensors on the surface of their body to navigate and locate food. Experiments (von der Emde and Fetz 2007 J. Exp. Biol. 210 3082-95) show that they can discriminate between differently shaped conducting or insulating objects by using electrosensing. One approach to electrically identify and characterize the object with a lower computational cost rather than full shape reconstruction is to use the first order polarization tensor (PT) of the object. In this paper, by considering experimental work on Peters' elephantnose fish Gnathonemus petersii, we investigate the possible role of the first order PT in the ability of the fish to discriminate between objects of different shapes. We also suggest some experiments that might be performed to further investigate the role of the first order PT in electrosensing fish. Finally, we speculate on the possibility of electrical cloaking or camouflage in prey of electrosensing fish and what might be learnt from the fish in human remote sensing.
机译：弱电鱼会产生电流，并在其身体表面使用数百个电压传感器来导航和定位食物。实验（von der Emde和Fetz 2007 J. Exp。Biol。210 3082-95）显示，它们可以通过使用电感应来区分形状不同的导电或绝缘物体。用较低的计算成本而不是完整的形状来电识别和表征物体的一种方法是使用物体的一阶极化张量（PT）。在本文中，通过考虑对Peters的象鼻鱼Gnathonemus petersii进行的实验工作，我们研究了一阶PT在鱼区分不同形状物体的能力中的可能作用。我们还建议可以进行一些实验，以进一步研究一阶PT在电感应鱼中的作用。最后，我们推测了在电感应鱼的猎物中发生电隐藏或伪装的可能性，以及在人类遥感中可能从鱼身上学到的东西。

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