OOIR: Observatory of International Research

Papers

(The H4-Index of GPS Solutions is 31. 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 2022-05-01 to 2026-05-01.)

Article	Citations
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	85
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	76
Observations and positioning quality of low-cost GNSS receivers: a review	67
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	61
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	54
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	47
A weighted mean temperature (Tm) augmentation method based on global latitude zone	46
MGAMNet: a multi-granularity aware and hierarchically mixed network for BDS-3 satellite clock bias prediction	46
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	45
STL-GT: graph-structured learning based transformer for GNSS positioning enhancement in urban environments	43
Evaluation of uncalibrated phase delays estimated based on orbit determination, clock estimation, and precise point positioning	42
Real-time estimation method for ionospheric correction accuracy in GNSS augmentation based on spatial correlation analysis	42
Enhancing smartphone-based vehicle navigation in deep urban areas using machine learning-aided PPP-RTK	42
Filter and piecewise smoother on the matrix Lie group	42
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	41
Adaptive displacement extraction from GNSS kinematic positioning using interactive multi-model Kalman filter	40
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	40
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	40
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	40
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	37
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	36
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	35
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	35
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	34
Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	34

POSGO: an open-source software for GNSS pseudorange positioning based on graph optimization	34
Estimation of the L5 antenna phase center corrections for GPS satellites	33
Rapid detection of GNSS time synchronization attacks via the enhanced code and carrier Doppler consistency test	32
Precise orbit determination for LEO constellation based on onboard GNSS observations, inter-satellite links and ground tracking data	32
Multipath mitigation in GNSS precise point positioning using multipath hierarchy for changing environments	32
Pseudorange characteristics of soil-transmitted GNSS signals and their application in soil moisture content retrieval	32
Analysis of periodic terms in the DYB frame for the solar radiation pressure model of BDS-3 MEO satellites	31
Impact of LEO configuration on GPS precise orbit determination with un-differenced ambiguity resolution	31
Modified NTCM models driven by the mean of global ionospheric total electron content (TEC): MNTCM-SHC0 and MNTCM-GEC	31