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Terrain Referenced Navigation System : Influence of the Fractal Dimension of a Terrain on the System Accuracy ? : Mémoire de fin d'étude - Acoustique sous-marine

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Terrain Referenced Navigation System : Influence of the Fractal Dimension of a Terrain on the System Accuracy ? : Mémoire de fin d'étude - Acoustique sous-marine

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This project aims to stress a way of characterizing the shape of underwater terrains for the use of a Terrain Referenced Navigation (TRN) system. It deals with a system of underwater navigation using the seabed to know its position zeroing out Inertial Navigation System (INS) drift. In the various simulations studied, terrains are created with a fractal terrain generator program, that is why the fractal dimension of terrains is tested as a parameter to characterize the shape of a terrain. Indeed, the fractal dimension gives an idea of the roughness or the smoothness of a terrain. So the goal of all the simulations in this document is, using a Terrain Referenced Navigation algorithm and an algorithm calculating fractal dimension, to enhance a possible relation betwenn the accuracy of the position given by the TRN system and the fractal dimension of the terrain above which the underwater platform navigates.

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