Indoor Localization with Closely Spaced Vivaldi Antennas in Ultra-Wideband

In this paper a positioning algorithm, based on the utilization of the receiving antenna properties is presented. The algorithm can be applied in Time of Flight (TOF) based localization systems with closely spaced receiving antennas additionally to the time estimation. In this work we present the practical measurements. But better result may be achieved using optimal receiving antennas and antenna spacing. The aim of the paper is to verify the concept in Ultra-Wideband by practical measurements.