underwater

The optimal arrangement of buoys is determined in terms of accuracy and availability depending on the number of available buoys and targeted water depth for an efficient operation. For example, at a targeted depth of 30 m in fresh water, a maximum horizontal position root-mean-square (RMS) error of less than 3 m can be achieved with a set of five buoys providing a service radius of up to 72 m. https://doi.org/10.3390/rs12213636 The formal transfer of GNSS under water is not possible. The radio signals don’t reach very far underwater, they’re basically useless for any submarine below the surface. If it is […]