System correction and magnetic interference compensation and fusion method for airborne fluxgate magnetic gradient tensiometer
A magnetic gradient tensor and fusion method technology, applied in the field of magnetic interference compensation, can solve the problems of not considering eddy current magnetic interference, no coverage, and difficulty in ensuring data quality.
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[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0056] The present invention first establishes the aircraft magnetic interference model and the single fluxgate error-free model respectively, and then fuses the two models into a single fluxgate correction and compensation model, and establishes the magnetic gradient according to the structure of the fluxgate tensor and through the discretization method of the continuous equation Tensor component correction and compensation model. Finally, the gradient tensor of the geomagnetic field in the high altitude is approximately zero for correction, and the correction coefficients of each gradient component are calculated. Four fluxgates are arranged in a "ten" structure to form a Taking the magnetic gradient tensor instrument as an example, it provides a calibration and compensation method for measurement applications after being loaded by an aircraf...
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