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Robust real-time kinematic positioning method based on NLOS detection and multipath elimination in GNSS challenged environments
Electronics Letters ( IF 0.7 ) Pub Date : 2020-12-01 , DOI: 10.1049/el.2020.2210
Xiaozhou Ye 1 , Chunjiang Ma 1 , Wenxiang Liu 1 , Feixue Wang 1
Affiliation  

Owing to the existence of non-line-of-sight (NLOS) signals in global navigation satellite system (GNSS) challenged environment, the real-time kinematic (RTK) position precision is seriously damaged. In order to improve the position accuracy, the authors propose a robust positioning method which tackles this problem by detecting the NLOS through a decision tree and estimating the double-differenced multipath errors in real time. The NLOS detection performance of the proposed method is 95.64%. The field experiment shows that the ambiguity fixing rate has improved by 43% in the instantaneous mode, and the 3D position accuracy is about 81.77% higher better than that of normal RTK method which is implemented by using RTKLIB software.

中文翻译:

GNSS挑战环境中基于NLOS检测和多径消除的鲁棒实时运动定位方法

由于在全球导航卫星系统(GNSS)面临挑战的环境中存在非视距(NLOS)信号,因此实时运动(RTK)位置精度受到严重损害。为了提高定位精度,作者提出了一种鲁棒的定位方法,该方法通过通过决策树检测NLOS并实时估计双差多径误差来解决此问题。该方法的NLOS检测性能为95.64%。现场实验表明,在瞬时模式下,模糊度固定率提高了43%,与使用RTKLIB软件实现的常规RTK方法相比,其3D定位精度提高了约81.77%。
更新日期:2020-12-04
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