INSTRUMENTATION FOR SOUND TRANSMISSION MEASUREMENTS.
AVCO MARINE ELECTRONICS OFFICE NEW LONDON CONN
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As part of the ONR Acoustic Prgram in signal processing, it was determined, in the fall of 1962, that certain propagation and ambient noise studies should be conducted in the Tongue of the Ocean. The propagation studies are to establish the deterministic and statistical character of wideband signals traveling isolated and identifiable paths the noise studies are to establish the statistical character of the wind generated noise at depth. To conduct these studies, it was necessary to obtain a suitable sound source and measuring instrumentation. Section I of this report covers results of investigation into small explosive charges Section II covers the improvement, reinstallation and calibration of a taut wire hydrophone array in the Tongue of the Ocean. Author