Models of Cetacean Signal Processing

  • Robert W. Floyd
Part of the NATO Advanced Study Institutes Series book series (volume 28)


There are several reasons for studying signal processing in dolphins in addition to the pure delight in understanding this mechanism. The most immediate benefit is in being able to predict and understand the results of echolocation tasks assigned to the animal. This is especially important in psychophysical experiments where one wishes to know if a threshold is the result of the behavior of the animal or is actually determined by the stimuli and the ability of the animals’ receiver to detect it. Another reason for studying signal processing is to discover what principals could be used by man in such areas as aids to the blind, sonar, geophysical exploration, etc. Finally, on a metaphysical level, knowledge of how the dolphin processes echoes helps to understand how the animal perceives his environment.


Matched Filter Echolocation Pulse Cochlear Nucleus Neuron Outgoing Signal Echolocation Click 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Au, W. W. L., 1979, Echolocation signals of the Atlantic bottlenosed dolphin (Tursiops truncatus) in open waters, this volume.Google Scholar
  2. Au, W. W. L., and Hammer, C., 1979, Target recognition via echolocation by Tursiops truncatus, this volume.Google Scholar
  3. Caine, N. G., 1976, Time separation pitch and the dolphin’s sonar discrimination of distance, Ph. D. Diss., San Diego State University, San Diego, California.Google Scholar
  4. Chapman, S., 1968, Dolphins and multifrequency, multiangular images, Science, 160:208.PubMedCrossRefGoogle Scholar
  5. Chestnut, P., and Landsman, H., 1977, Sonar target recognition experiment, ESL Inc. Report N° ESL-ER178, 495 Java Dr., Sunnyvale, California.Google Scholar
  6. Green, D. M., and Swets, J. A., 1966, “Signal Detection Theory and Psychophysics”, J. Wiley, New York.Google Scholar
  7. Jeffress, L. A., 1968, Mathematical and electrical models of auditory detection, J. Acoust. Soc. Amer., 44:187.CrossRefGoogle Scholar
  8. Johnson, C. S., 1968, Relation between absolute threshold and duration-of-tone pulses in the bottlenosed porpoise, J. Acoust. Soc. Amer., 43:757.CrossRefGoogle Scholar
  9. Johnson, C. S., 1968, Masked tonal thresholds in the bottlenosed porpoise, J. Acoust. Soc. Amer., 44:965.CrossRefGoogle Scholar
  10. Johnson, R. A., and Titlebaum, E. L., 1976, Energy spectrum analysis: a model of echolocation processing, J. Acoust. Soc. Amer., 60:484.CrossRefGoogle Scholar
  11. McClellan, M. E., and Small, A. M., 1967, Pitch perception of pulse pairs with random repetition rate, J. Acoust. Soc. Amer., 42:690.Google Scholar
  12. Murchison, A. E., 1979, Detection range and range resolution of echo-locating bottlenosed porpoise (Tursiops truncatus), this volume.Google Scholar
  13. Simmons, J. A., 1979, Perception of echo phase information in bat sonar, in press.Google Scholar
  14. Simmons, J. A., 1979, Processing of sonar echoes by bats, this volume.Google Scholar
  15. Urkowitz, H., 1967, Energy detection of unknown deterministic signals, Proc. IEEE, 55:523,CrossRefGoogle Scholar
  16. Vater, M., 1979, Coding of sinusoidally frequency-modulated signals by single cochlear nucleus neurons of Rhinolophus ferrumequinum, this volume.Google Scholar

Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Robert W. Floyd
    • 1
  1. 1.Naval Ocean Systems CenterKailuaUSA

Personalised recommendations