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Accession Number:
ADA278580
Title:
Signal Processing for the 1992 Barents Sea Tomography Experiment
Corporate Author:
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Report Date:
1993-12-01
Abstract:
In August 1992, an acoustic tomography experiment was conducted in the Barents Sea. The objective of this thesis is the development of space-time signal processing algorithms to extract the arrival times of rays and modes for that experiment. The temporal signal processing involves pulse compression of the phase-encoded signal. Spatial signal processing consists of plane wave and modal beamforming on data fram a 16 element vertical line array. After signal processing an arrival detection, identification, and tracking algorithm is used to obtain travel time and travel time error estimates. After development and testing of these algorithms, 13 hours of acoustic data was processed for rays and eight hours of data was processed for modes. The resultant travel time information is then available for inversion to sound speed maps.
Descriptive Note:
Master's thesis
Supplementary Note:
Original contains color plates: All DTIC/NTIS reproductions will be in black and white.
Pages:
0072
Distribution Statement:
Approved for public release; distribution is unlimited. Document partially illegible.
File Size:
2.01MB
