Magnetic Field Data Calibration with Transformer Model Using Physical Constraints: A Scalable Method for Satellite Missions, Illustrated by Tianwen-1
It addresses data calibration challenges for satellite missions, enabling faster space weather modeling and planetary studies, though it is incremental as it applies an existing neural network architecture to a specific domain.
This study tackled the problem of calibrating magnetic field data from the Tianwen-1 Mars mission by integrating a Transformer model with physical constraints from Maxwell's equations, resulting in a method that improves accuracy and reduces calibration time from weeks to minutes or hours.
This study introduces a novel approach that integrates the magnetic field data correction from the Tianwen-1 Mars mission with a neural network architecture constrained by physical principles derived from Maxwell's equation equations. By employing a Transformer based model capable of efficiently handling sequential data, the method corrects measurement anomalies caused by satellite dynamics, instrument interference, and environmental noise. As a result, it significantly improves both the accuracy and the physical consistency of the calibrated data. Compared to traditional methods that require long data segments and manual intervention often taking weeks or even months to complete this new approach can finish calibration in just minutes to hours, and predictions are made within seconds. This innovation not only accelerates the process of space weather modeling and planetary magnetospheric studies but also provides a robust framework for future planetary exploration and solar wind interaction research.