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Frequency driven scanning characteristic of a pinna model inspired from the Brown Big-eared bat (Plecotus auritus)
Author(s): WANG Fuxun, ZHUANG Qiao, ZHANG Zhiwei
Pages: 26-
30
Year: 2010
Issue:
1
Journal: Acta Acustica
Abstract: 以大耳蝠耳廓外形参数为基础,提出了一种由线、面结构得到的简化斜截式喇叭模型,应用有限单元法对该模型进行数值仿真计算,分析了其远场声场方向性随频率在垂直和水平方向的变化.结果表明,与大耳蝠耳廓模型相比,该模型具有更宽的频扫频带;水平方向上有更好的频扫方向性;垂直方向上有更大的扫描角度范围.并且,应用具有频扫特性的天线,可得到一种单基站无线定位方法.
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