Array Receivers and Sound Sources for Three Dimensional Shallow Water Acoustic Field Experiments

The approach of the instrument upgrade included improving the SHRU clocks by utilizing chip-scale atomic clocks (CSAC), enlarging battery packs to extend the operation duration, and adding data storage capacity for long-duration missions. The advantage of CSAC on clock precision can improve syntheti...

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Bibliographic Details
Main Author: Tsong-Lin,Ying
Other Authors: Woods Hole Oceanographic Institution Woods Hole United States
Format: Text
Language:English
Published: 2016
Subjects:
acoustics
arctic ocean
atomic clocks
shallow water
acoustic propagation
three dimensional
acoustic fields
Underwater acoustics
Receivers
Synthetic aperture sonar
ocean acoustic tomography
shelfbreak
Arctic
Arctic Ocean
Online Access:http://www.dtic.mil/docs/citations/AD1023908
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD1023908
Description
Summary:The approach of the instrument upgrade included improving the SHRU clocks by utilizing chip-scale atomic clocks (CSAC), enlarging battery packs to extend the operation duration, and adding data storage capacity for long-duration missions. The advantage of CSAC on clock precision can improve synthetic aperture processing and ocean acoustic tomography and achieve excellent long-term timing precision. A one-year deployment with continuous recording can be accomplished in the Arctic Ocean acoustics experiment, to capture both summer and winter conditions. Besides the hardware upgrade, we also improved the software controlling the SHRU data acquisition systems. After the hardware and software upgrades, the SHRU units were placed in a cooler at 0 degrees Celsius for comprehensive system testing.

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