Effect of Base Station configurations and complexity on the accuracy of ultra wideband localisation

This paper presents experimental work on 3D localisation using different Base station configurations. The two Base Station (BS) configurations proposed (L shape and Mirror Based) use only 3 BS's and are able to achieve good accuracy in cm range in 3D. Time of Arrival and peak detection algorithms are used to find the position of the target. Results show that the configuration of base stations directly affect localization accuracy. It is observed that the average localization accuracy of the L shape configuration is in the range of 3-5 cm and for mirror based configuration is around 2 cm for x and y axis and 5 cm for z axis. Average Directional accuracy achieved is approx 1 to 3 degrees for both azimuth and elevation angles.

[1]  I. Guvenc,et al.  Threshold-based TOA estimation for impulse radio UWB systems , 2005, 2005 IEEE International Conference on Ultra-Wideband.

[2]  A.H. Sayed,et al.  Network-based wireless location: challenges faced in developing techniques for accurate wireless location information , 2005, IEEE Signal Processing Magazine.

[3]  G.B. Giannakis,et al.  Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks , 2005, IEEE Signal Processing Magazine.

[4]  M.R. Mahfouz,et al.  Investigation of High-Accuracy Indoor 3-D Positioning Using UWB Technology , 2008, IEEE Transactions on Microwave Theory and Techniques.

[5]  H. Vincent Poor,et al.  Position Estimation via Ultra-Wide-Band Signals , 2008, Proceedings of the IEEE.

[6]  Yang Hao,et al.  Transient Characteristics of Wearable Antennas and Radio Propagation Channels for Ultrawideband Body-Centric Wireless Communications , 2009, IEEE Transactions on Antennas and Propagation.

[7]  M J Kuhn,et al.  A System-Level Simulation Framework for UWB Localization , 2010, IEEE Transactions on Microwave Theory and Techniques.

[8]  C. Parini,et al.  Study of Ultra wideband localisation techniques using various monitoring configurations , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).