A new magnetic compass calibration algorithm using neural networks

In this paper, a kind of pedestrian navigation system (PNS) that based on Earth’s magnetic field is introduced, and the error of the build-in electronic compass is analyzed, and an efficient calibration algorithm is presented. The PNS is determined pedestrian’s movement locus by calculating the heading angle and analyzing the movement characteristic, and then using the dead reckoning algorithm to combine the information together. The precision of PNS is affected by the error of the electric compass, because the heading angle is calculated from the magnetic field data measured by the compass. In order to reduce the measure error, a direct method which is used to calibrate the compass, based on ellipsoid fitting, is developed.

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Research on magnetic compass calibration for air-ground amphibious robot system

2016 35th Chinese Control Conference (CCC) ◽

10.1109/chicc.2016.7554325 ◽

2016 ◽

Cited By ~ 1

Author(s):

Qiuyue Yu ◽

Lei Cheng ◽

Qinyan Zhang ◽

Yang Chen ◽

Huaiyu Wu ◽

...

Keyword(s):

Magnetic Compass ◽

Robot System ◽

Compass Calibration ◽

Amphibious Robot

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A novel magnetic compass calibration method based on improved ellipse model

2010 International Conference on Intelligent Control and Information Processing ◽

10.1109/icicip.2010.5564263 ◽

2010 ◽

Cited By ~ 3

Author(s):

Qi Zhang ◽

Qixiao Gao ◽

Yongbing Chen ◽

Xun Huang

Keyword(s):

Calibration Method ◽

Magnetic Compass ◽

Ellipse Model ◽

Compass Calibration

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Digital Magnetic Compass Integration with Stationary, Land-Based Electro-Optical Multi-Sensor Surveillance System

Sensors ◽

10.3390/s19194331 ◽

2019 ◽

Vol 19 (19) ◽

pp. 4331 ◽

Cited By ~ 1

Author(s):

Livada ◽

Vujić ◽

Radić ◽

Unkašević ◽

Banjac

Keyword(s):

Long Range ◽

Satellite System ◽

Magnetic Compass ◽

Surveillance Systems ◽

Accuracy Measurement ◽

Measurement Results ◽

Compensation Technique ◽

Compass Calibration ◽

Global Navigation Satellite ◽

Technical Solutions

Multi-sensor imaging systems using the global navigation satellite system (GNSS) and digital magnetic compass (DMC) for geo-referencing have an important role and wide application in long-range surveillance systems. To achieve the required system heading accuracy, the specific magnetic compass calibration and compensation procedures, which highly depend on the application conditions, should be applied. The DMC compensation technique suitable for the operation environment is described and different technical solutions are studied. The application of the swinging procedure was shown as a good solution for DMC compensation in a given application. The selected DMC was built into a system to be experimentally evaluated, both under laboratory and field conditions. The implementation of the compensation procedure and magnetic sensor integration in systems is described. The heading accuracy measurement results show that DMC could be successfully integrated and used in long-range surveillance systems providing required geo-referencing data.

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