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Investigation of the Relationship Between Localization Accuracy and Sensor Array

2022-01-07 09:14:12
Y Li
arXiv_RO
   
Abstract

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.

Abstract (translated)

URL

https://arxiv.org/abs/2201.02372

PDF

https://arxiv.org/pdf/2201.02372.pdf

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