Directivity and sounddiffraction of the pinna of the Megaderma spasma are studied to predict the the role of these outer ear extensions in the biosonar system.
本文研究的重点就是通过模拟计算来预测这种明显的外耳扩展部分对波束形成的影响。
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Because of wavelength of sound at low frequencies being close to the dimensions of small enclosures, scattering and diffraction in the course of sound radiation can not be ignored.