Non-orthogonal Error Correction of Three-axis Magnetic Sensor Based on Improved IWO Algorithm

doi:10.3969/j.issn.1000-1093.2019.12.016

Abstract

Abstract: The non-orthogonal error exists in a three-axis magnetic sensor due to the limitations of the machining and installation processes. A non-orthogonal error model of three-axis magnetic sensor is established to correct the error and obtain accurate triaxial magnetic data, and the model is solved by using the least squares method. Four intelligent optimization algorithms are used to solve the least-squares problem, and the invasive weed algorithm is improved. Simulated and experimental results show that the least squares error correction method based on the improved invasive weed optimization （IWO）algorithm can be used to effectively correct the non-orthogonal errors of three-axis magnetic sensors by reducing the motion noise of 85.42% and 86.5%, respectively.Key

Key words: three-axismagneticsensor, non-orthogonalerror, leastsquaresmethod, improvedinvasiveweedoptimizationalgorithm

CLC Number:

TM936.1

LUO Jingbo， CHEN Hao， ZHAO Miao， ZHAI Guojun. Non-orthogonal Error Correction of Three-axis Magnetic Sensor Based on Improved IWO Algorithm[J]. Acta Armamentarii, 2019, 40(12): 2513-2518.

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第40卷
第12期2019 年12月兵工学报ACTA
ARMAMENTARIIVol.40No.12Dec.2019