Accession Number : AD0647426

Title :   PROPAGATION AND RECEPTION OF TRANSIENT UNDERWATER SOUNDS,

Corporate Author : AVCO MARINE ELECTRONICS OFFICE NEW LONDON CONN

Personal Author(s) : Marsh,H. W. ; Elam,S. R. ; Konrad,W. L.

Report Date : 15 SEP 1966

Pagination or Media Count : 90

Abstract : Measurements of sound propagating from underwater detonations are described, in terms of waveform and spectra. Correlated analytical results are presented, which emphasize the comparative effects of finite amplitude, relaxation, viscosity, and geometrical spreading. A transient (pressure) is defined to be the event between successive crossings of ambient pressure. The reception and analysis of such transients is discussed. (Author)

Descriptors :   (*UNDERWATER SOUND, PROPAGATION), SOUND TRANSMISSION, SONAR, UNDERWATER EXPLOSIONS, SOUND, MEASUREMENT, PROCESSING, UNDERWATER SOUND SIGNALS, ACOUSTIC FILTERS, DIGITAL SYSTEMS

Subject Categories : Acoustics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE