Author:

Keywords:

Angle of Arrival, Antenna array, Localization, Multipath

Abstract:

Present-day RF indoor localization systems generally underper- form due to multipath propagation. This paper presents a new localization method based on Angle of Arrival estimation and ray tracing. This system exploits the reflections that are generally considered as a burden in conven- tional systems. In order to design the proposed system, a virtual test bench is created that enables adjusting all parameters. This test bench is then used to evaluate various antenna array elements. Also the Beamscan, MVDR, MUSIC and ESPRIT angle of arrival estimation algorithms are being tested and the effect of spatial smoothing is studied for each of these algorithms. The tests demonstrate that directional microstrip patch antennas result in the best array response for the proposed system and that spatial smoothing is indispensable in multipath environments.