Research on Correction of Tri-axial Magnetometer and Application in Underwater Magnetic Field Localization

摘要：

An error modelling and correction method for triaxial magnetometer applicable to low SNR (signal to noise ratio) condition is proposed. Because the errors of tri-axial magnetometer caused by nonorthogonality, different sensitivities among three axes reduce the accuracy of underwater vehicle magnetic field localization, it is necessary to correct and compensate these errors. The error model of magnetometer and its correction algorithm are both analysed and deduced in detail. Compared to Reference 13, simulation proves the convergence of the algorithm even if SNR of magnetometer is low. The relation between error correction precision and sampling number is given, and which verifies the method can be adapted to correction of tri-axial magnetometer with strong noise. The error modelling and correction method for tri-axial magnetometer can be applied to underwater vehicle localization with a satisfactory precision.

关键词： Tri-axial magnetometer error correction identification optimal estimation underwater localization

作者: Huang Yu LI Chao SUN Feng

作者单位: Harbin Engineering University Harbin,Heilongjiang Province 150001,China

会议类型: 国际会议

会议名称: 2010 IEEE信息与自动化国际会议(ICIA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1-5

在线出版日期: 2010-06-20（万方平台首次上网日期，不代表论文的发表时间）