回声定位蝙蝠对目标结构和回声频谱的辨别

Target structure and echo spectral discrimination by echolocating bats.

作者信息

Simmons J A, Lavender W A, Lavender B A, Doroshow C A, Kiefer S W, Livingston R, Scallet A C, Crowley D E

出版信息

Science. 1974 Dec 20;186(4169):1130-2. doi: 10.1126/science.186.4169.1130.

DOI:10.1126/science.186.4169.1130

Abstract

Echolocating bats can use sonar to discriminate among targets which reflect echoes differing in spectral distribution of energy but not in overall intensity. They can detect differences smaller than 1 millimeter in fine target structure. Bats may be capable of classifying targets from echo spectral signatures and might thus be able to distinguish among flying insect prey by sonar.

摘要

具有回声定位能力的蝙蝠可以利用声呐来区分目标，这些目标反射的回声在能量的频谱分布上有所不同，但在总强度上并无差异。它们能够检测到精细目标结构中小于1毫米的差异。蝙蝠或许能够根据回声频谱特征对目标进行分类，因此有可能通过声呐区分飞行中的昆虫猎物。