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http://dx.doi.org/10.7840/KICS.2012.37A.3.163

Two Techniques of Angle-of-Arrival Estimation for Low-Data-Rate UWB Wireless Positioning  

Lee, Yong-Up (한림대학교 전자공학과)
Lim, Kyeong-Sun (한림대학교 전자공학과)
Park, Joo-Hyeon (한림대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.3A, 2012 , pp. 163-171 More about this Journal
Abstract
The signal model and weighted-average based estimation techniques are proposed to estimate the angle-of-arrival (AOA) parameters of multiple clusters for a low data rate ultrawide band (LR-UWB) based wireless positioning system. It is observed that the weighted-average based AOA estimation technique gives an optimal AOA estimate under few clusters condition, and the average based AOA estimation technique gives a correct AOA estimate under many clusters condition through computer simulation. Also, we can observe that the variance estimation error decreases as SNR increases, and the proposed techniques are superior to the conventional technique from the viewpoint of performance.
Keywords
low-data-rate UWB(LR-UWB); IEEE 802.15.4a channel; clustering; Angle-of-arrival(AOA); Estimation technique; Wireless positioning;
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