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Multispectral Backscatter Evaluation Project

QPS Chief Scientist, Dr. Jonathan Beaudoin, has been working with academic partner Dr. Craig Brown (Nova Scotia Community College (NSCC)) and with Mike Brissette (R2Sonic) to assist in field evaluation of the new multispectral capabilities of R2Sonic multibeam echosounders.  Trials were conducted in the Bedford Basin in Halifax, NS, Canada in August, this being the second set of field trials.  Early results from the first field trials held in March 2016 were presented by Dr. Beaudoin and Dr. Brown at the GeoHab conference in Winchester, UK in May of 2016.  For both trials, QPS provided software support for acquisition and data processing to facilitate the R&D process for R2Sonic.  QINSy, Qimera and FMGT were configured in a real-time mode to allow for immediate production of backscatter imagery.  This enabled quick evaluation of results and facilitated a dynamic experimental approach to the trials.  Multispectral backscatter is a new capability that has the potential to be a game changer for seafloor backscatter imaging.  The capability to image the seafloor simultaneously with widely separated acoustic frequencies will allow for improved classification and characterization capabilities in addition to a host of other applications that are yet to be discovered.

Photo:  Dr. Craig Brown on the far right, accompanied by an NSCC intern to the left and a few deckhands.  The piece of kit in the lower left is an R2Sonic 2026 multibeam echosounder on the end of a pole mount.  This was the sonar we were testing R2Sonic’s new multispectral capability with in QINSy, Qimera and FMGT.

Photo: we're out in Bedford Basin in Halifax with Mike Brissette from R2Sonic and Dr. Craig Brown from the Nova Scotia Community College.  We’re field testing R2Sonic’s new “multispectral” backscatter capability with QPS software.  The QPS Seamless Workflow is hard at work, see the attached photo.  On the left you see QINSy doing acquisition and integration for real-time QA.  The .db files are then automatically transferred to a network drive at the end of each line by QINSy.  On the right monitor, Qimera Live then automatically slurps in those files, processes them and the operator converts to GSF with a single mouse click.  FMGT then slurps in the GSF file automatically with its own Directory Monitoring capability, and the operator gets an updated backscatter mosaic with a single button click.

 

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