Propagation Loss Measurements at 400 Hertz in the BIFI Range Using a Towed Source.

This is a report on 400 Hz propagation loss measurements conducted between 25 March and 18 April 1969. These tests are part of a series using the BIFI Range (Reference 1) located between Block Island, Rhode Island and Fishers Island, New York. Three types of acoustic tests were performed, consisting...

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Bibliographic Details
Main Author: Kanabis,William G
Other Authors: NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CONN NEW LONDON LAB
Format: Text
Language:English
Published: 1971
Subjects:
Acoustic Detection and Detectors
Acoustics
Non-radio Communications
*SIGNAL PROCESSING
*ACOUSTIC WAVES
*WAVE PROPAGATION
*UNDERWATER SOUND SIGNALS
*TOWED SONAR
DATA PROCESSING
TOWED ARRAYS
DEPTH
DISPLAY SYSTEMS
DATA REDUCTION
ACOUSTIC MEASUREMENT
LOSSES
DEEP WATER
SONAR ARRAYS
ACOUSTIC RANGES
*Propagation loss measurement
Fisher Island
BIFI range
Underwater sound transmission
Most Project-2
WU14054
Block Island
Fishers Island
Online Access:http://www.dtic.mil/docs/citations/ADA035881
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA035881
Description
Summary:This is a report on 400 Hz propagation loss measurements conducted between 25 March and 18 April 1969. These tests are part of a series using the BIFI Range (Reference 1) located between Block Island, Rhode Island and Fishers Island, New York. Three types of acoustic tests were performed, consisting of fixed range-variable depth pulsed CW, variable range-variable depth CW and pulsed CW. The object of these tests was to determine the propagation loss of a 400 Hz signal as a function of range and depths of the source. Depths were chosen to enhance various modes of propagation. (Author)

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