OOIR: Observatory of International Research

Papers

(The H4-Index of GPS Solutions is 27. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
A weighted mean temperature (Tm) augmentation method based on global latitude zone	86
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	83
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	76
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	72
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	71
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	65
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	48
Rigorous and fast constraints transformations at the solution level: case studies for regional and global GNSS networks	45
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	45
Filter and piecewise smoother on the matrix Lie group	43
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	42
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	42
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	41
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	40
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	35
Observations and positioning quality of low-cost GNSS receivers: a review	35
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	34
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	32
Performance assessment of GNSS-IR altimetry using signal-to-noise ratio data from a Huawei P30 smartphone	32
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	31
POSGO: an open-source software for GNSS pseudorange positioning based on graph optimization	31
Multipath mitigation in GNSS precise point positioning based on trend-surface analysis and multipath hemispherical map	31
Optimization design of two-layer Walker constellation for LEO navigation augmentation using a dynamic multi-objective differential evolutionary algorithm based on elite guidance	31
Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	28
Comparative study of ionospheric sporadic E occurrence rates using SNRnstd and S4 derived from GPS radio occultation	28

Pseudorange characteristics of soil-transmitted GNSS signals and their application in soil moisture content retrieval	28
Analysis of periodic terms in the DYB frame for the solar radiation pressure model of BDS-3 MEO satellites	28