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arXiv 2201.02372eess.SPcs.RO
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定位精度与传感器阵列关系的研究

Investigation of the Relationship Between Localization Accuracy and Sensor Array

Y Li

摘要:

磁定位方法已经得到了广泛的研究,它主要基于磁源产生的磁场的精确映射。在实验中,影响定位精度的因素很多。因此,本文试图通过不同的实验来研究定位精度与传感器阵列的关系。该系统采用小型磁铁作为磁源,基于磁偶极子模型建立磁定位系统的数学模型,对磁场进行估计。采用Levenberg-Marquardt算法构造磁定位目标函数进行对比实验。实验结果表明:当传感器均匀分布在磁体周围时,其定位精度高于其他布局的传感器阵列,平均定位误差为0.47mm,平均定向误差为0.92 °。

英文摘要:

The magnetic localization method has been widely studied, which is mainly based on the accurate mapping of the magnetic field generated by magnetic sources. Many factors affect localization accuracy in the experiment. Therefore, this paper tends to study the relationship between localization accuracy and sensor array with different experiments. This system uses a small magnet as the magnetic source, and the mathematical model of the magnetic positioning system is established based on the magnetic dipole model to estimate the magnetic field. The Levenberg-Marquardt algorithm was used to construct a magnetic positioning objective function for comparison experiments. Experimental results show:When the sensor is evenly distributed around the magnet, the positioning accuracy is higher than other layout of the sensor array, the average localization error is 0.47mm and the average orientation error is 0.92 degree.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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