Next Article in Journal
Unobstructive Body Area Networks (BAN) for Efficient Movement Monitoring
Previous Article in Journal
A Method for Application of Classification Tree Models to Map Aquatic Vegetation Using Remotely Sensed Images from Different Sensors and Dates
Article Menu

Export Article

Open AccessArticle
Sensors 2012, 12(9), 12455-12472; doi:10.3390/s120912455

Swarm Optimization-Based Magnetometer Calibration for Personal Handheld Devices

1
Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
2
Alastair Ross Technology Centre, Trusted Positioning Inc. (TPI), Calgary, AB T2L 2K7, Canada
*
Author to whom correspondence should be addressed.
Received: 10 July 2012 / Revised: 10 September 2012 / Accepted: 11 September 2012 / Published: 13 September 2012
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [793 KB, uploaded 21 June 2014]   |  

Abstract

Inertial Navigation Systems (INS) consist of accelerometers, gyroscopes and a processor that generates position and orientation solutions by integrating the specific forces and rotation rates. In addition to the accelerometers and gyroscopes, magnetometers can be used to derive the user heading based on Earth’s magnetic field. Unfortunately, the measurements of the magnetic field obtained with low cost sensors are usually corrupted by several errors, including manufacturing defects and external electro-magnetic fields. Consequently, proper calibration of the magnetometer is required to achieve high accuracy heading measurements. In this paper, a Particle Swarm Optimization (PSO)-based calibration algorithm is presented to estimate the values of the bias and scale factor of low cost magnetometers. The main advantage of this technique is the use of the artificial intelligence which does not need any error modeling or awareness of the nonlinearity. Furthermore, the proposed algorithm can help in the development of Pedestrian Navigation Devices (PNDs) when combined with inertial sensors and GPS/Wi-Fi for indoor navigation and Location Based Services (LBS) applications.
Keywords: artificial intelligence; systems; measurement; navigation; algorithms; sensor artificial intelligence; systems; measurement; navigation; algorithms; sensor
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ali, A.; Siddharth, S.; Syed, Z.; El-Sheimy, N. Swarm Optimization-Based Magnetometer Calibration for Personal Handheld Devices. Sensors 2012, 12, 12455-12472.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top