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Volume 32 Issue 2
Aug.  2010
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Ding Rui, Qian Zhi-hong, Wang Xue. UWB Positioning System Based on Joint TOA and DOA Estimation[J]. Journal of Electronics & Information Technology, 2010, 32(2): 313-317. doi: 10.3724/SP.J.1146.2009.00140
Citation: Ding Rui, Qian Zhi-hong, Wang Xue. UWB Positioning System Based on Joint TOA and DOA Estimation[J]. Journal of Electronics & Information Technology, 2010, 32(2): 313-317. doi: 10.3724/SP.J.1146.2009.00140

UWB Positioning System Based on Joint TOA and DOA Estimation

doi: 10.3724/SP.J.1146.2009.00140
  • Received Date: 2009-02-02
  • Rev Recd Date: 2009-10-22
  • Publish Date: 2010-02-19
  • 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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