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| 大耳蝠耳廓模型频扫特性的研究 | |
| 引用本文： | 王福勋,庄桥,张智伟.大耳蝠耳廓模型频扫特性的研究[J].声学学报,2010,35(1). |
| 作者姓名： | 王福勋 庄桥 张智伟 |
| 作者单位： | 1. 山东大学信息科学与工程学院,济南,250100 2. 中国科学院声学研究所,北京,100190 3. 山东大学物理学院,济南,250100 |
| 基金项目： | 国家自然科学基金，国家基础科学人才培养基金 |
| 摘 要： | 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。 |
| 关 键 词： | 斜截式 声场分布 模型 频率 水平方向 耳廓 数值仿真计算 方向性 蝙蝠 智能天线 |
Frequency driven scanning characteristic of a pinna model inspired from the Brown Big-eared bat (Plecotus auritus) |
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| WANG Fuxun,ZHUANG Qiao,ZHANG Zhiwei.Frequency driven scanning characteristic of a pinna model inspired from the Brown Big-eared bat (Plecotus auritus)[J].Acta Acustica,2010,35(1). | |
| Authors: | WANG Fuxun ZHUANG Qiao ZHANG Zhiwei |
| Institution: | WANG Fuxun~1 ZHUANG Qiao~2 ZHANG Zhiwei~3 (1 School of Information Science , Engineering,Sh,ong University Jinan 250100) (2 Institute of Acoustics,Chinese Academy of Sciences Beijing 100190) (3 School of Physics,Sh,ong University Jinan 250100) |
| Abstract: | According to the parameters of a Brown big-eared bat's pinna,a simple obliquely truncated bat ear model made by line and plane was designed,then the model was numerical simulated with finite element method,the change of far-field directivity was analyzed in vertical and azimuth direction as the frequency increased.The results show that, comparing with the pinna of the Brown big-eared bat,the model has the advantages in wider bandwidth of frequency driven scanning,better directivity in azimuth,larger angle s... |
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| 本文献已被 CNKI 万方数据 等数据库收录！ | |