Accession Number : AD0774889

Title :   Study of Animal Signals and Neural Processing, with Applications to Advanced Sonar Systems.

Descriptive Note : Final rept. Jan 72-Jul 73,

Corporate Author : NAVAL UNDERSEA CENTER SAN DIEGO CALIF

Personal Author(s) : Altes,Richard A.

Report Date : JAN 1974

Pagination or Media Count : 223

Abstract : Wideband signal theory is discussed in relation to presently used sonar signals. The advantages of broadband pulses for classification of non-planar targets is discussed, and a theory is presented which provides a simple, straightforward method of target classification. The use of such pulses for detection of targets in background clutter is described. Signals derived using this theory are essentially identical to those recorded from echolocating porpoises, indicating that the porpoise's sonar system may make use of similar signal design parameters. Bat echolocation signals are also derived. Application of the theory to auditory signal processing is discussed. (Author)

Descriptors :   *Sonar signals, *Bionics, Animals, Broadband, Auditory signals, Signal processing

Subject Categories : Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE