Calibrating method for electronic compass
An electronic compass and calibration method technology, applied in the field of directional navigation, can solve the problems of not substantially improving the measurement accuracy of the magnetic compass, deterioration of fitting performance, and large amount of data
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[0056] Attached below figure 1 The present invention is described further, the concrete realization steps of the present invention are:
[0057] Step 1: Obtain training samples: Rotate an ordinary two-dimensional solid-state magnetic resistance electronic compass with the manual turntable at a non-uniform speed in an indoor environment without any processing of the external magnetic field to obtain the measured value of the electronic compass and the corresponding The rotation angle of the turntable is used as a training sample, the measured value of the electronic compass is used as the value x to be compensated, and the rotation angle of the turntable is used as the ideal value Y.
[0058] The second step: determine the structure of the neural network: a single-input single-output Fourier neural network (SISO-FNN) is used to establish a model of the electronic compass direction angle error. The network is a three-layer forward network, and its three layers are input layer, ...
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