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Two Techniques of Angle-of-Arrival Estimation for Low-Data-Rate UWB Wireless Positioning
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 Title & Authors
Two Techniques of Angle-of-Arrival Estimation for Low-Data-Rate UWB Wireless Positioning
Lee, Yong-Up; Lim, Kyeong-Sun; Park, Joo-Hyeon;
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 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;
 Language
Korean
 Cited by
 References
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