标题：Performance evaluation of GPS / BDS combined single-point positioning based on RTKLIB (Open Access)
作者：Yan-Yi, Li ;Jin, Huang ;Ming-Xiu, Tang
作者机构：[Yan-Yi, Li ;Jin, Huang ;Ming-Xiu, Tang ] College of Geomatics, Shandong University of Science and Technology, Shandong Qingdao; 266590, China
会议名称：2nd International Conference on Civil Architecture and Energy Science, CAES 2020
会议日期：March 20, 2020 - March 22, 2020
来源：E3S Web of Conferences
摘要：In order to evaluate the performance of GPS / BDS, RTKLIB, an open-source software of GNSS, is used in this paper. In this paper, the least square method, the weighted least square method and the extended Kalman filter method are respectively applied to BDS / GPS single system for data solution. Then, the BDS system and GPS system are used for fusion positioning and the positioning results of the two systems are compared with that of the single system. Through the comparison of experiments, on the premise of using the extended Kalman filter method for positioning, when the GPS signal is not good, BDS data is introduced for dual-mode positioning, the positioning error in e direction is reduced by 36.97%, the positioning error in U direction is reduced by 22.95%, and the spatial positioning error is reduced by 16.01%, which further reflects the advantages of dual-mode positioning in improving a system robustness and reducing the error.
© The Authors, published by EDP Sciences, 2020.