Kongsberg Mesotech Rotary Sonar Data Product - SCAN Mode
Data files for Kongsberg Mesotech Rotary Sonar instruments are described here. In the SCAN mode, the sonar repeatedly images a particular sector of the of it's full 360 degree sweep range. The parameters are set with a central azimuth and a half-width. To see these settings navigate to the device details from step 2 of data search, i.e. http://dmas.uvic.ca/DeviceListing?DeviceId=12007
, and then go to the attributes tab. The full SWEEP data product is also available.
Revision History
- 20120519: Initial SMB product released
Formats
This data is available in SMB format (the log file is a internal Neptune Canada format). Log files are created daily at midnight UTC from data acquired throughout the day. Shortly thereafter, the data products are processed from the log files and are made available to data search. Content descriptions are provided below.
SMB
This binary format is specific to the manufacturer. When using Kongsberg Mesotech data acquisition software, data is normally stored in this way. Although we use custom-built drivers to communicate with our instruments, we can use the raw data in the log file to produce the SMB file which can be interpreted by Kongsberg Mesotech MS1000 post-processing software.
This format is further described in the manufacturer's documentation: ^900-00007904-2.1.pdf. A MATLAB library is available upon request to read the SMB file. This code will be used to create a MAT file data product in the future.
Please note, this is a brand new data product. It has only been tested in MS1000 version 4.51 (testing is in progress with version 5.0). It's availability may be limited, there may be data gaps. Daily data processing will begin around July 11, 2012. Some recent data is currently available. Historic data will be reprocessed and will become available in the near future. If a data search returns with 'No data found' when the data availability shows that there is data, please contact NEPTUNE support and we will make that data a priority for processing.
Viewing SMB Files
The MS1000 software is free to redistribute for playback of the data. The latest version can be downloaded from Kongsberg Mesotech's FTP site ftp://ftp.kongsberg-mesotech.com, it's under folder MS1000 Software\Released Version 5.00
FTP User name: anonymous@kongsberg-mesotech.com
FTP Password: guest
To unzip the file, you will need a password "1nn0vat1v3". Then install as usual. Run the MS1000 and press the play button, or double-click an SMB file to launch the software in playback mode.
The current version of the software defaults to a mode that only shows part of the scan. To see the scan properly, right-click on the image and select 'Fit Image To Screen'. Right-clicking also brings up on other status windows. Please see the screenshot below (click to enlarge). Future versions of the MS1000 software will better support the high sample high that our rotary sonars operate at.
Discussion
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