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http://dx.doi.org/10.7236/JIIBC.2013.13.5.85

A Study on the Relative Positioning Technology based on Range Difference and Root Selection  

Oh, Jongtaek (Dept. of ICs Engineering, Hansung University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.13, no.5, 2013 , pp. 85-91 More about this Journal
Abstract
For location based service and context awareness services, accurate indoor positioning technology is essential. The TDOA method that uses the range difference between signal source and receivers for estimating the location of the signal source, has estimation error due to measurement error. In this paper, a new algorithm is proposed to select the real root among calculated roots using the range difference information, and the estimated position of the signal source shows good accuracy compared to the existing method.
Keywords
Relative Position; Range Difference; Real Root Selection; TDOA;
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