Title
FY 77 Subsea Slow-Scan Acoustic Television (SUBSAT) tests
Related Titles
Series:
Technical report (Naval Ocean Systems Center (U.S.)), 217
By
Gordon, A.
Naval Ocean Systems Center (U.S.)
Type
Book
Material
Archival material
Publication info
San Diego, Calif, Naval Ocean Systems Center, 1978
Notes
"Title from cover."
"Research and Development: October 1976-Ocober 1977"--Cover.
"March 1978."
Experiments were conducted in December 1976 and January 1977 to test the feasibility of transmitting and receiving slow-scan television (SSTV) through existing underwater telephones (UQCs). Off-the-shelf monitors, recorders, and scan converters were installed on two submersibles and two surface craft. The slow-scan hardware was installed without modification to the UQCs and without disabling the normal UQC voice function. The slow-scan data rate was 7200 baud and occupied a 2.5-MHz bandwidth, fully compatible with existing UQC equipment. Twenty-six test transmissions, each consisting of a number of slow-scan frames, were made during the tests. While some of the pictures were of excellent quality, most were degraded because of multipath effects. Analysis of the data indicates that better pictures would have been obtained had the acoustic path been more nearly vertical. Further experiments are planned. (Author).
Subjects
Ocean engineering
,
Underwater acoustics
Language
English
Identifiers
DOI:
https://doi.org/10.5962/bhl.title.47221
OCLC:
550559444
Wikidata:
https://www.wikidata.org/entity/Q51481044
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