Paper Info
Title
Resolving positions of coherent sources using linear antenna arrays at 2.4 GHz.
Abstract
In this paper we intend to find out what resolution can be achieved with two-dimensional Angle of Arrival localization when using linear antenna arrays at 2.4 GHz. A theoretical resolution calculation method is presented. Room dimensions, number of cooperating anchor nodes (provided with a linear antenna array) which track the position of a mobile node and number of antenna elements can be chosen. These theoretical calculations lead to the definition of a reference value which can be used to calculate the expected resolution for all rectangular shaped rooms with the desired variable settings. It is also shown that square rooms result in the best resolution and adding extra antenna elements improves the resolution. The design and calibration of a practical linear antenna array, with four linearly positioned 2.4 GHz antenna elements and inter distance of lambda/2, is presented. Measurements of practical beam patterns, and the corresponding -3dB beam widths, for different incident angles show that influences such as mutual coupling and reflections can not be neglected. The practical resolutions are compared with expected theoretical values and it is shown that besides I/Q and phase offset calibration, manifold calibration is necessary.
Year
DOI
Venue
2014
10.1109/UPINLBS.2014.7033721
UPINLBS
Keywords
Field
DocType
calibration
Antenna (radio),Dipole antenna,Antenna measurement,Antenna array,Optics,Antenna factor,Coaxial antenna,Antenna noise temperature,Antenna aperture,Physics
Conference
Citations 
PageRank 
References 
0
0.34
7
Authors
5
Name
Order
Citations
PageRank
Anneleen Van Nieuwenhuyse110.71
Stijn Wielandt2194.30
Jean-Pierre Goemaere3258.31
Bart Nauwelaers44611.92
Lieven De Strycker54814.04