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Echolocating bats emit a highly directional sonar sound beam in the field
by Annemarie Surlykke, Simon Boel Pedersen, and Lasse Jakobsen
Proceedings BVolume 276(1658):853-860
March 7, 2009
©2009 by The Royal Society
(a) The set-up with a linear horizontal array of three microphones and one microphone above the middle microphone.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
(a,b) Isolation of first harmonic.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
Removing interference from water reflections.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
Flight path, beam direction and spectra.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
Echolocation beam shape depends on frequency.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
(a) Individual calls compared to average beam shape.
Annemarie Surlykke et al. Proc. R. Soc. B 2009;276:853-860
©2009 by The Royal Society
