Echolating bats who are capable of instantaneously recognizing the physical attributes of their environment have a developed biosonar system that has important technological application. The attended angle of a flying bat is the angle of the direction of attention relative to the flight path, indicates the directionality of the echolocation pulse. The bats with specified bodymass and certain characteristics of echolocation signals were captured and the test was conducted in a specially designed chamber. The constant frequency components, frequency modulation component were analyzed from the sonogram using a matlab program and a fast Fourier transform was performed. The bat has a broader beam pattern that helps to listen echoes from broader angles.
Relation:
Acoustical Science and Technology 27 (2) , pp. 108-110
