|Table of Contents|

Static Calibration of Geomagnetic Sensors for Attitude Measurement

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年01期
Page:
127-131
Research Field:
Publishing date:

Info

Title:
Static Calibration of Geomagnetic Sensors for Attitude Measurement
Author(s):
LIU Jian-jingZHANG HeDING Li-bo
ZNDY of Ministerial Key Laboratory,NUST,Nanjing 210094,China
Keywords:
geomagnetic fields attitude angles geomagnetic sensors calibration
PACS:
TJ410.6
DOI:
-
Abstract:
To eliminate the influence of the attitude angle measurement system of shells based on geomagnetic field resulting from the errors of 3-axis geomagnetic sensors,the static calibration technology is used to correct the errors.In terms of the sensitivity errors,bias errors and non-orthogonal errors of geomagnetic sensors,a calibration model is established.Methods for calculating the nine error coefficients of the model are deduced and a system is established to realize the static calibration of 3-axis geomagnetic sensors.Without the surrounding disturbance,the nine coefficients are obtained firstly,and then the calibration effect on the measurement system is evaluated by comparison.The experimental results indicate that the accuracy of the attitude angles measurement system increases one time after calibration and the calibration model can greatly decrease the errors of geomagnetic sensors.

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Last Update: 2012-10-12