Shallow water imaging sonar system for environmental surveying. Final report Page: 4 of 11
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was funded jointly by DOE and CENTRA, and phase two would be funded with venture
capital. The CRADA covers only phase one.
The phase one project milestones were divided into nine consecutive stages and each stage
lasted approximately two months. Interim report at the end of each stage was to be written by
AAI and delivered to LLNL and CENTRA. The final report at the end of stage nine
summarized the experimental performance of the prototype system.
C. Technical Accomplishments
As shown in References  to , technical reports summarizing the progress and findings
at the end of each stage were delivered to LLNL and CENTRA on time and on schedule
except for stage 8 where it was three months late because of the lack of availability of
hardware components. Final report for stage 9 provided the final experimental evaluation of
the sonar prototype. A short article detailing the interim progress of this work was published
in the USIC Connection . Here is a brief summary and conclusions of the final effort.
A sonar prototype (Fig. 1) was constructed, along with the necessary signal conditioning
hardware, digital signal processor for received signal target extraction, and a PC based
comprehensive 2D graphical display systems (Fig. 2). Fig. 3 shows the graphical displays of
the sonar detection during a test trial on the left and numerical displays on the right showing
detected object information such as depth, vertical and horizontal angles.
Fig. 1 Sonar Prototype during lab trial Fig. 2 PC based display
Final Report TC-1130-95
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Shallow water imaging sonar system for environmental surveying. Final report, report, May 1, 1998; California. (digital.library.unt.edu/ark:/67531/metadc686607/m1/4/: accessed January 20, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.