Theoretical investigation of active listening behavior based on the echolocation of CF-FM bats.

ABSTRACT: Bats perceive the three-dimensional environment by emitting ultrasound pulses from their nose or mouth and receiving echoes through both ears. To determine the position of a target object, it is necessary to know the distance and direction of the target. Certain bat species that use a combined signal of long constant frequency and short frequency modulated ultrasounds synchronize their pinnae movement with pulse emission, and this behavior has been regarded as helpful for localizing the elevation angle of a reflective sound source. However, the significance of bats' ear motions remains unclear. In this study, we construct a model of an active listening system including the motion of the ears, and conduct mathematical investigations to clarify the importance of ear motion in direction detec

SUBMITTER: Hiraga T 

PROVIDER: S-EPMC9581360 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature