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| AOA Estimation for UWB Positioning Using a Mono-station Antenna Array |
| Zhang Hao①② Liu Xing① Gulliver T A② Cui Xue-rong① |
①(Department of Electrical Engineering, Ocean University of China, Qingdao 266100, China)
②(Department of Electrical and Computer Engineering, University of Victoria, Victoria V8W 3P6, Canada) |
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Abstract An Angle Of Arrival (AOA) estimation method for Ultra WideBand (UWB) positioning based on a mono-station Hexagonal monopole antenna array is proposed. The AOA information is obtained from the received pulse amplitudes combined with the antenna array beam pattern including dynamic parameters, rather than the time difference of pulses arrival. Performance results are presented in this paper. It shows that an AOA estimation error of less than 1 degree can be achieved with a probability of 96%. Over a location distance of 10 m via IEEE 802.15.4a CM3 channel, the proposed AOA estimation algorithm results in an error of less than 15 cm with a probability of 80%. This UWB system can be simply deployed. It also provides high accuracy, so it is an effective positioning solution.
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Received: 18 December 2012
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Corresponding Authors:
Liu Xing
E-mail: liuxing3901@163.com
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2013, Vol. 35 
