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| UWB Positioning System Based on Joint TOA and DOA Estimation |
| Ding Rui,Qian Zhi-hong,Wang Xue |
| College of Communication Engineering, Jilin University, Changchun 130025, China |
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Abstract For UWB positioning system based on time delay estimation, there must be multiple reference nodes which increase the cost of system. If the reference source node can estimate the Time Of Arrival (TOA) and Direction Of Arrival (DOA) together, the location of the target can be obtained with only one reference node. In this paper, a UWB positioning system based on joint TOA and DOA estimation is proposed. The algorithm of estimation is based on Matrix Pencil (MP), and then relative coordinates of the target can be obtained. The advantage of the approach with one receiver is low cost for system. Through simulations, it is proved that the accuracy of delay and angle estimation is good, and positioning accuracy can achieve centimeter-level. It is available and practical method of UWB positioning systems which is proposed in this paper.
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Received: 02 February 2009
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Corresponding Authors:
Ding Rui
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2010, Vol. 32 
