- document
- Psychas, D.V. (author), Verhagen, S. (author), Liu, X. (author), Memarzadeh, Y. (author), Visser, H. (author), Teunissen, P.J.G. (author) abstract 2018
- document
- Psychas, D.V. (author), Verhagen, S. (author), Liu, Xianglin (author) abstract 2019
- document
-
Ma, H. (author), Psychas, D.V. (author), Xing, Xuhuang (author), Zhao, Qile (author), Verhagen, S. (author), Liu, Xianglin (author)The tropospheric delay is one of many error sources that affect the Global Navigation Satellite System (GNSS) positioning solutions. The widely used troposphere models assume a homogeneous atmosphere so that only the zenith delay needs to be determined and is mapped through an elevation-dependent mapping function. This procedure is to reduce...journal article 2021
- document
-
Ma, H. (author), Zhao, Qile (author), Verhagen, S. (author), Psychas, D.V. (author), Liu, Xianglin (author)The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ambiguities are fixed. Yet, it is still worthwhile to investigate fast and high-precision...journal article 2020
- document
-
Psychas, D.V. (author), Verhagen, S. (author), Liu, X. (author), Memarzadeh, Y. (author), Visser, H. (author)This paper presents an analysis of the ionospheric corrections required to get a significant improvement in PPP-RTK performance. The main aim was to determine the improvement in the position precision and Time-To-First-Fix in the PPP-RTK user side using ionospheric corrections computed from a network. The study consists of two main steps. The...journal article 2019
- document
- Psychas, D.V. (author), Verhagen, S. (author), Liu, X. (author), Memarzadeh, Y. (author), Visser, H. (author), Teunissen, P.J.G. (author) other 2018
- document
- Psychas, D.V. (author), Verhagen, S. (author), Liu, X. (author) other 2018
- document
- Psychas, D.V. (author), Verhagen, S. (author), Liu, Xianglin (author) poster 2019