2020
DOI: 10.1108/sr-03-2019-0074
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Design and optimization of sensor array for magnetic gradient tensor system

Abstract: Purpose The differential magnetic gradient tensor system is usually constructed from the three-axis magnetic sensor array. While the effects of measurement error, sensor performance and baseline distance on localization performance of such systems have been widely reported, the research about the effect of spatial design of sensor array is less presented. This paper aims to provide a spatial design method of sensor array and corresponding optimization strategy to localization based on magnetic tensor gradient … Show more

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Cited by 10 publications
(4 citation statements)
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“…The positioning results of U1, when placed in an upright position, are shown in Figure 7, Figure 8, and Based on Figure 7, Figure 8, and Figure 9, the positioning points with the numbers (7,8,9,12,13,14,17,18,19), which are located in the central 3*3 square area, have relatively small positioning errors at depths of 30 cm, 50 cm, and 60 cm. The average absolute values of the specific positioning errors are shown in Table 2.…”
Section: Experimental Results and Analysismentioning
confidence: 96%
See 1 more Smart Citation
“…The positioning results of U1, when placed in an upright position, are shown in Figure 7, Figure 8, and Based on Figure 7, Figure 8, and Figure 9, the positioning points with the numbers (7,8,9,12,13,14,17,18,19), which are located in the central 3*3 square area, have relatively small positioning errors at depths of 30 cm, 50 cm, and 60 cm. The average absolute values of the specific positioning errors are shown in Table 2.…”
Section: Experimental Results and Analysismentioning
confidence: 96%
“…In the dipole model, where the distance between the two points of the dipole is much smaller than the distance to any point in space when the object's dimensions can be abstracted as a point compared to the distance relationship, the magnetic field produced by a magnetic dipole at any point in space satisfies the equation [9] :…”
Section: Positioning Methodsmentioning
confidence: 99%
“…[6]. Chen et al applied an array design and optimization method to the magnetic positioning algorithm based on magnetic gradient tensor, and studied the effect of sensor array space design on positioning in a multi-sensor magnetic gradient tensor system [7]. Yan et al analyzed and corrected the position error of the magnetometer in the cross-type magnetic tensor gradiometer [8].…”
Section: Introductionmentioning
confidence: 99%
“…Compared to other navigation methods, magnetic navigation [ 1 , 2 , 3 ] has the advantages of autonomy, no accumulated error, and strong anti-interference ability, which reduces the risk of the signal being captured and attacked.…”
Section: Introductionmentioning
confidence: 99%