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Proceedings Paper

Study on tracking system with pulsed AC magnetic field for virtual reality system
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Paper Abstract

Electromagnetic tracking devices are often used to track location and orientation of a user's hand and/or head in a Virtual Reality system. However the tracking precision is not always high enough due to the dependence of the system on the local electromagnetic field that can be easily altered by ambient magnetic fields. A tracking system with pulsed AC (Alternative Current) magnetic field is presented based on the analysis of the principle and shortcomings of the DC (Direct Current) electromagnetic tracking system. The structure of the proposed system and the iterative digital correlator used for processing the received data are described. The simulation result shows the feasibility of the proposed system. Actual electromagnetic tracking system can be designed on the basis of the research.

Paper Details

Date Published: 1 April 2003
PDF: 6 pages
Proc. SPIE 4756, Third International Conference on Virtual Reality and Its Application in Industry, (1 April 2003); doi: 10.1117/12.497774
Show Author Affiliations
Yue Liu, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)
Xiaoming Hu, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 4756:
Third International Conference on Virtual Reality and Its Application in Industry
Zhigeng Pan; Jiaoying Shi, Editor(s)

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