Title :
Weighted-beacon least square positioning method based on measurement
Author :
Kang, Jimyung ; Lee, Soonwoo ; Kang, Moon-Kyoung ; Park, Young-Jin ; Kim, Kwanho
Author_Institution :
Power Telecommun. Res. Center, Korea Electrotechnol. Res. Inst., Ansan, South Korea
Abstract :
In this paper, we propose a simple location positioning method based on our own IR-UWB system. First, we examine the sampling characteristics of pulse-arrival-time. Second, we propose a simple location positioning method (WB-LS) based on our observation. The WB-LS method takes the sampling characteristic at each beacon into consideration when it calculates the position of the tag. It shows a much improved location estimation performance (up to 50%) compared to the LS method which does not consider the difference of beacons.
Keywords :
Accuracy; Gaussian distribution; Maximum likelihood estimation; Measurement uncertainty; Position measurement; Pulse measurements; Time measurement; IR-UWB; TDoA; location positioning;
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2010 Second International Conference on
Conference_Location :
Jeju Island, Korea (South)
Print_ISBN :
978-1-4244-8088-3
DOI :
10.1109/ICUFN.2010.5547213