Open AccessRobust real‐time kinematic positioning method based on NLOS detection and multipath elimination in GNSS challenged environments
Author(s) -
Ye Xiaozhou,
Ma Chunjiang,
Liu Wenxiang,
Wang Feixue
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2020.2210
Subject(s) - non line of sight propagation , gnss applications , multipath propagation , computer science , kinematics , real time kinematic , real time computing , position (finance) , galileo (satellite navigation) , satellite navigation , global positioning system , geodesy , geography , telecommunications , channel (broadcasting) , physics , finance , classical mechanics , economics , wireless
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.