Using HYPACK and HYSWEEP for collecting and processing … · 2018. 5. 23. · HYPACK and HYSWEEP...
Transcript of Using HYPACK and HYSWEEP for collecting and processing … · 2018. 5. 23. · HYPACK and HYSWEEP...
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Using HYPACK and HYSWEEP for collecting
and processing Multibeam and LiDAR data
Harold Orlinsky - HYPACK
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Multiple sensor collection in HYSWEEP
The presentation will describe a survey done in Malta – both acquisition and processing, using a multibeam and Lidar sensor.
The use of these sensors are becoming more common, and creating a (near) seamless survey for land and sea becomes the goal
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Data processing
The tools in MBMAX64 will allow you to view and edit each sensor, and create a single view of the two sensors
The capability of looking above and below the water line provide a better understanding of the survey data, and can create some very neat images
Sailboats unknowingly anchored on top of a ship wreck3
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Malta Survey – a case study
Tools we used:• Norbit WBMS• Velodyne Lidar (16 channel)• Applanix position and motion
sensor
The survey area:Inner Harbor, Malta (old city)12km of survey, 90 minutes
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Malta Survey – a case study
Data CollectionSetting up HYPACK and HYSWEEP Hardware
Data ProcessingUsing MBMAX64 for bathy and Lidar processing
Final ProductsCLOUD displays, HYPACK Shell, export to Google Earth
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Hardware set-up
A few things:Norbit driver in 2018 releaseLidar: Channel selection is now in Survey
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HYPACK and HYSWEEP Survey
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Survey Map – Data display in Matrix, Sounding data, targets
Profile window for ping data
Point CLOUD –display data from both sensors
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HYPACK and HYSWEEP Survey
• Single file (HSX) holds all sensor information (multibeam, LiDAR, ancillary data). File size does get large, about 25 MB/min
• Correlated windows – Target in Point CLOUD will display in main map window
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Data processing in MBMAX64
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Since both sensors are in a single HSX file, MBMAX64 allows the selection of each one.
Once processed as an HS2x file, the data will be combined to a single session
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Data processing in MBMAX64
Multibeam processing:
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Data processing in MBMAX64
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LiDar processing:Remove flyers. As the sonar spins 360 degrees, additional processing is needed. Use of filters makes it easy!
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Data processing in MBMAX64
Data along a dock (cruise ship) or structures can easily be mapped
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Combining the two data sets
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Seamless survey of surface and sub surface data
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Conclusion
HYPACK and HYSWEEP can collect any number of sensors, including multibeam, LiDAR, sidescan, all ancillary sensors.
In Survey, the operator can view all sensors for QC
In Processing, each sensor can be processed. Separating them initially allows for different filters to be used, for example.
Afterwards, combine the data to a single file and final product
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Thank you
Any question, please contact me
Additionally information can be found on the HYPACK.com web site
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