A method for characterizing the biodiversity in bat pinnae as a basis for engineering analysis
A method for characterizing the biodiversity in bat pinnae as a basis for engineering analysis
复制标题
一种表征蝙蝠耳廓生物多样性的方法，作为工程分析的基础
DOI：
10.1088/1748-3182/6/2/026008
复制
发表时间：
2011-05
期刊：
影响因子：
--
通讯作者：
Mueller, Rolf
中科院分区：
文献类型：
--
作者：
Ma, Jianguo;Mueller, Rolf
定量分析了蝙蝠生物声纳系统中波束形成挡板形状之间的种间变异性。分析的数据集包括来自至少59个物种的100个外耳（耳廓）形状。一个向量空间表示适合于主成分分析（PCA）的羽片表面的转换到柱坐标系的凭借构建。圆柱变换的中心轴是通过最小化势函数得到的。这些形状通过它们各自的轴和重心对齐。样品的平均羽片是对称的，斜截角。前七个特征值已经占了平均值周围变异的三分之二，这表明蝙蝠耳廓中的大多数生物多样性可以在更低维的空间中理解。前三个主成分表明，大部分的蝙蝠耳廓样品的变异性是在开放角度，左右不对称，并选择性的变化在顶部或底部的耳廓宽度。这些单独的组件的波束方向图的影响已被表征。这些见解可用于从生物声纳的多样性中设计生物启发的波束形成设备。
A quantitative analysis of the interspecific variability between beamforming baffle shapes in the biosonar system of bats is presented. The data set analyzed consisted of 100 outer ear (pinna) shapes from at least 59 species. A vector-space representation suitable for principal component analysis (PCA) was constructed by virtue of a transform of the pinna surfaces into cylindrical coordinates. The central axis of the cylindrical transform was found by minimizing a potential function. The shapes were aligned by means of their respective axes and their center of gravity. The average pinna of the sample was a symmetrical, obliquely truncated horn. The first seven eigenvalues accounted already for two-thirds of the variability around the mean, which indicates that most of the biodiversity in the bat pinna can be understood in a more low-dimensional space. The first three principal components show that most of the variability of the bat pinna sample is in terms of opening angle, left–right asymmetry, and selective changes in width at the top or the bottom of the pinna. The beampattern effects of these individual components have been characterized. These insights could be used to design bioinspired beamforming devices from the diversity in biosonar.
登录
查看更多内容
影响因子：
2.4
作者：
Li Gao;Weikai He;Sreenath Balakrishnan;R. Müller
通讯作者：
Li Gao;Weikai He;Sreenath Balakrishnan;R. Müller
DOI：
10.1007/978-3-642-77347-1
发表时间：
1993
期刊：
--
影响因子：
--
作者：
S. Haykin;J. Litva;T. Shepherd
通讯作者：
S. Haykin;J. Litva;T. Shepherd
DOI：
--
发表时间：
1999-12
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Gareth Jones
通讯作者：
Gareth Jones
DOI：
10.1121/1.416073
发表时间：
1996-09
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
J. Wotton;T. Haresign;M. Ferragamo;J. Simmons
通讯作者：
J. Wotton;T. Haresign;M. Ferragamo;J. Simmons
影响因子：
0.2
作者：
G. G. Raun-G.;J. Baker
通讯作者：
G. G. Raun-G.;J. Baker