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Integration and calibration of the survey systems

July 1, 2019

For accurate surveys, and to integrate data from multiple sensors, you have to know the exact spatial relationships between the multibeam depth sounder head, motion sensors, GNSS antenna, LiDAR unit and cameras. The measurements to define these relationships were recently done by the experts at Geovisie.

We have also done a number of patch tests by undertaking repeated surveys of known features, above and below water, to determine the offsets used by the software. Finally we verified everything using an accurately surveyed underwater threshold at Capelle aan de IJssel in the Netherlands which Rijkswaterstaat provides for calibration purposes.  

Integration and calibration of the survey systems

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