Title :
On remote RF-based orientation detection
Author :
Romme, J. ; van den Heuvel, J.H.C. ; Dolmans, G. ; Selimis, G. ; Philips, K. ; de Groot, Harmke
Author_Institution :
Holst Centre, IMEC-NL, Eindhoven, Netherlands
Abstract :
A novel concept is proposed for orientation estimation of mobile tags for Ultra-WideBand (UWB) localization systems. The concept is based on the preservation of polarization by the (indoor) radio channel for Line of Sight (LOS) components. It is shown that an UWB localization system can estimate the 2 dimensional orientation of an UWB transmitter for any tag position within the coverage area, if the polarization of the local electric field is measured by at least 4 receivers. Additionally, it is proven that an UWB receiver receiver (RX) needs only 2 antennas to measure the local polarization direction, using the estimate of the tags position. Finally, the accuracy is presented of 2-dimensional orientation estimation algorithms in the presence of noise.
Keywords :
electromagnetic wave polarisation; estimation theory; mobile radio; radio direction-finding; radio receivers; radio transmitters; ultra wideband antennas; ultra wideband communication; wireless channels; 2-dimensional orientation estimation algorithm; LOS component; UWB localization system; UWB receiver; UWB transmitter; antenna; electric field measurement; indoor radio channel; line of sight component; mobile tag estimation; polarization preservation; remote RF-based orientation detection estimation; tags position estimation; ultrawideband localization system; Antenna measurements; Directive antennas; Estimation; Noise; Vectors;
Conference_Titel :
Communications (ICC), 2013 IEEE International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICC.2013.6655333
