A study regarding spatial impulse response of concave transducers with applications on bats

摘要

It is known that bats use echolocation to detect their prey. Their sonar system allows echolocating bats to navigate with high skill through a complex, three dimensional environment at high speed and low light. The auditory analysis of the echoes of their ultrasonic sounds requires a detailed comparison of the emission and echoes. In order to use the best shape of a transducer, in this paper it was used the spatial impulse response and it has been studied the directivity pattern of a concave transducer with different dimensions.