Aviation magnetic compensation method considering aircraft non-rigidity and polarization current factors

The invention discloses an aviation magnetic compensation method considering aircraft non-rigidity and polarization current factors. The method comprises the steps of establishing a classical magnetic compensation T-L model, establishing an aircraft platform interference magnetic field model, establ...

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Bibliographic Details
Main Authors XIA MINGYAO, DU CHANGPING, JING SEN, YUAN ZIFAN
Format Patent
LanguageChinese
English
Published 20.08.2021
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention discloses an aviation magnetic compensation method considering aircraft non-rigidity and polarization current factors. The method comprises the steps of establishing a classical magnetic compensation T-L model, establishing an aircraft platform interference magnetic field model, establishing a magnetic compensation model of a three-component fluxgate magnetometer error model, obtaining an interference magnetic field generated by polarization current, compensating a geomagnetic field, establishing an optical pump magnetometer direction error, establishing a final aircraft platform magnetic interference model, using a total least square method for solving a magnetic compensation coefficient vector, and using the solved magnetic compensation coefficient vector compensation coefficientfor real-time compensation of an aircraft platform. According to the method, the original 18 T-L models are expanded to 50 or more T-L models, so that the error problem of a three-axis fluxgate magnetometer and the mat
Bibliography:Application Number: CN202110544510