Accession Number : AD0864732

Title :   Delphinid Sonar: Pulse Wave and Simulation Studies.

Descriptive Note : Summary rept. 15 May 68-20 Jun 69.

Corporate Author : TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS

Report Date : DEC 1969

Pagination or Media Count : 93

Abstract : The echolocation signals emitted by delphinids have been recorded from a transducer suspended in a test tank. The resulting data have been a confused combination of the characteristics of the source and the targets and the acoustical properties of the test tank. The recent development of techniques for placing transducers on an echoranging animal as well as between and at the targets has made it possible to (1) separate the components of a delphinid echolocation pulse for meaningful analysis, (2) construct a meaningful simulation of delphinid echoranging pulses, (3) define the anatomical area of pulse production; and (4) expand the animal's capability for processing the outgoing signal. (Author)

Descriptors :   *CETACEA), (*ECHO RANGING, (*ACOUSTIC SIGNALS, ACOUSTIC DETECTORS), ELECTROACOUSTIC TRANSDUCERS, UNDERWATER SOUND SIGNALS, SONAR TARGETS, SIMULATION.

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE