Delay axis of impulse-response images in biosonar

James A. Simmons, Mark I. Sanderson, Nicola Neretti, Nathan Intrator

Research output: Contribution to journalConference articlepeer-review


Theoretical and experimental work on echo-delay acuity in bat sonar reveals a unique, previously unknown ffeature of the bat's internal representation of sonar targets. Echolocating bats determine target distance, or range, from the delay of echoes. Using the auditory system as a sonar receiver, big brown bats are able to achieve this potential. To understand how the wide frequency span of echoes contributes to the bat's delay images, the frequency content of echoes by removing progressively greater portions of te low-frequency or the high-frequency end of the broadcast spectrum is restricted.

Original languageEnglish
Pages (from-to)310
Number of pages1
JournalOceans Conference Record (IEEE)
StatePublished - 2003
Externally publishedYes
EventCelebrating the Past... Teaming Toward the Fututre - San Diego, CA., United States
Duration: 22 Sep 200326 Sep 2003


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