Ensuring that navigation and acoustic data collection are more reliable
Although 71% of the earth’s surface is covered with water, many areas have not yet been mapped (e.g. the Arctic region and lakes in the provinces of Quebec). One of the avenues considered for the intensification of the production of hydrographic data is the use of autonomous survey vehicles.
However, the expertise required to conduct a hydrographic survey has not yet been translated into automatic algorithms that can operate in a robust and unsupervised manner.
Also, autonomous vehicle operation in the Arctic zone poses several challenges: the presence of a layer of ice and the water temperature which induce positioning errors of sounding points and noise in the data; very high uncertainty of inertial navigation; scarcity of opportunities to secure GNSS positions beneath the ice.
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