OOIR: Observatory of International Research

Papers

(The H4-Index of GPS Solutions is 32. 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 2022-06-01 to 2026-06-01.)

Article	Citations
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	84
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	79
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	73
Adaptive displacement extraction from GNSS kinematic positioning using interactive multi-model Kalman filter	61
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	55
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	53
Real-time estimation method for ionospheric correction accuracy in GNSS augmentation based on spatial correlation analysis	47
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	47
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	47
Filter and piecewise smoother on the matrix Lie group	45
Evaluation of uncalibrated phase delays estimated based on orbit determination, clock estimation, and precise point positioning	45
Observations and positioning quality of low-cost GNSS receivers: a review	45
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	44
A weighted mean temperature (Tm) augmentation method based on global latitude zone	44
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	43
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	43
MGAMNet: a multi-granularity aware and hierarchically mixed network for BDS-3 satellite clock bias prediction	43
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	40
Global characterisation of GNSS-PWV behaviour stratified by the Köppen-Geiger climate classification	40
STL-GT: graph-structured learning based transformer for GNSS positioning enhancement in urban environments	37
Enhancing smartphone-based vehicle navigation in deep urban areas using machine learning-aided PPP-RTK	37
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	37
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	36
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	36
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	35

Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	35
Estimation of the L5 antenna phase center corrections for GPS satellites	34
Pseudorange characteristics of soil-transmitted GNSS signals and their application in soil moisture content retrieval	33
Estimating urban building height based on smartphone GNSS LOS/NLOS signal classification	33
GNSS-RTK model: common-frequency versus mixed-frequency	33
An integrated VKA-LSTM model for GNSS height time series prediction	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
Analysis of periodic terms in the DYB frame for the solar radiation pressure model of BDS-3 MEO satellites	32