Regional sensing magnetic positioning method applied to tongue motion tracking

The invention discloses a regional sensing magnetic positioning method applied to tongue motion tracking, which comprises the following steps of: establishing a magnetic positioning calibration subsystem, controlling a mechanical arm to bear a magnetic tracker to move in a sensor array working region according to a preset track, and synchronously acquiring the spatial position, attitude angle data and magnetic field intensity data of the magnetic tracker to construct a training set; according to the synchronously collected data, establishing a neural network-based generative model, learning a mapping relationship from the position and attitude of the magnetic tracker to the magnetic sensing data, and synthesizing a sample expansion training set; dividing the change range of the spatial position and the attitude angle of the magnetic tracker in the tongue motion tracking process into a plurality of sub-regions; constructing a region sensing module based on a neural network, estimating a region where a magnetic