基于UKF的车辆磁场补偿方法

IEEE 2011 10th International Conference on Electronic Measurement & Instruments Pub Date : 2011-10-10 DOI:10.1109/ICEMI.2011.6037939

Li Ji, Pan Mengchun, Luo Feilu, Luo Shi-tu, Zhang Qi

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引用次数: 9

摘要

地磁场的精确测量对导航非常重要。一般情况下，安装在车辆上的磁力计容易受到车辆磁场的干扰。为了提高导航精度，必须对车辆磁场进行补偿。本文提出了一种新的补偿方法。通过分析测量值与地磁场真值之间的关系，推导了一种矢量测量值与标量真值相结合的测量模型，并采用基于UKF的算法对模型的未知参数进行了求解。最后进行了计算机仿真，验证了该方法的有效性。结果表明，该方法对车辆磁场补偿快速有效。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Vehicle magnetic field compensation method using UKF

Exact measurements of geomagnetic field is very important for navigation. In general, magnetometers fixed on the vehicles are prone to be disturbed by the magnetic field of the vehicles. In order to improve the navigation precision, magnetic field of vehicles must be compensated. In this paper, a new compensation method is proposed. Through analysis of the relationships between measurements and truth of geomagnetic field, a new measurement model using vector measurements and scalar truth is derived, and an algorithm based on UKF is used to evaluate the unknown parameters of the model. Finally computer simulation is carried out to assess the validity of the method. The results show that the proposed method is quick and effective for the compensation of vehicle magnetic field.

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IEEE 2011 10th International Conference on Electronic Measurement & Instruments

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