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Influence of the real UWB antennas on the AoA estimation based on the TDoA localization technique

Main contribution of this paper is to present the influence of the real ultra-wideband directional antennas on the Angle of Arrival estimation. Furthermore, is to mitigate this undesired impact of the ultra-wideband antennas to improve the overall system performance and enhance the Angle of Arrival estimation accuracy. In the first step we analyze the estimation error due to the antenna induced delay if Vivaldi antennas are used as receiving antennas within two different scenarios. In the second step we present the corrected AoA estimation after mitigation of the error resulting from the antenna induced delay. The Angle of Arrival estimations with error mitigation and without error mitigation are compared. Real measurements are used in the experiments.