This paper shows that the accuracy of azimuth angle measurement for an interferometric localization system used to locate tags in its Line-of-Sight (LoS) can be improved by exploiting Impulse Radio-Ultra WideBand (IR-UWB) signals and without increasing the frequency bandwidth. This solution uses a Phase Correlation (PC) method, initially applied for Continuous Wave (CW) signals, adapted for Ultra WideBand (UWB) pulse signals. The obtained results are compared to those computed by a classical Energy Detection (ED) method where it becomes impossible to estimate azimuth angles for tag positions close to the orthogonal centered axis of the localization system baseline.

中文翻译：

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室内UWB定位中到达角测量精度的提高

本文表明，通过利用脉冲无线电超宽带（IR-UWB）信号而不增加频率，可以提高用于在视线（LoS）中定位标签的干涉定位系统的方位角测量精度带宽。此解决方案使用相位相关（PC）方法，该方法最初应用于连续波（CW）信号，适用于超宽带（UWB）脉冲信号。将获得的结果与通过经典的能量检测（ED）方法计算的结果进行比较，在该方法中，无法估计接近定位系统基线的正交中心轴的标签位置的方位角。