Noseleaf pit in Egyptian slit-faced bat as a doubly curved reflector
Noseleaf pit in Egyptian slit-faced bat as a doubly curved reflector
复制标题
埃及狭缝蝙蝠的鼻叶坑作为双曲面反射器
DOI:
10.1209/0295-5075/97/44001
复制
发表时间:
2012-02
期刊:
影响因子:
--
通讯作者:
Fuxun Wang
中科院分区:
文献类型:
--
作者:
Qiao Zhuang;Xiaomin Wang;Mingxuan Li;Jie Mao;Fuxun Wang
Noseleaves in slit-faced bats have been hypothesized to affect the sonar beam. Using numerical methods, we show that the pit in the noseleaf of an Egyptian slit-faced bat has an effect on focusing the acoustic near field as well as shaping the radiation patterns and hence enhancing the directionality. The underlying physical mechanism suggested by the properties of the effect is that the pit acts as a doubly curved reflector. Thanks to the pit the beam shape is overall directional and more selectively widened at the high end of the biosonar frequency range to improve spatial coverage and detectability of targets.
DOI:
10.1109/9780470544518
发表时间:
2000-07
期刊:
--
影响因子:
--
作者:
D. Sullivan
通讯作者:
D. Sullivan
影响因子:
3.4
作者:
R. Müller;R. Kuc
通讯作者:
R. Müller;R. Kuc
DOI:
10.5860/choice.37-2177
发表时间:
1968
期刊:
--
影响因子:
--
作者:
通讯作者:
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