GPS Solutions

Article	Citations
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	86
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	81
MGAMNet: a multi-granularity aware and hierarchically mixed network for BDS-3 satellite clock bias prediction	76
Evaluation of uncalibrated phase delays estimated based on orbit determination, clock estimation, and precise point positioning	64
Filter and piecewise smoother on the matrix Lie group	58
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	57
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	57
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	57
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	52
STL-GT: graph-structured learning based transformer for GNSS positioning enhancement in urban environments	52
A weighted mean temperature (Tm) augmentation method based on global latitude zone	49
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	49
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	48
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	48
Real-time estimation method for ionospheric correction accuracy in GNSS augmentation based on spatial correlation analysis	48
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	47
Adaptive displacement extraction from GNSS kinematic positioning using interactive multi-model Kalman filter	44
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	43
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	40
Enhancing smartphone-based vehicle navigation in deep urban areas using machine learning-aided PPP-RTK	39
TurboUNet: secure code estimation for non-cooperative GNSS spoofing	38
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	38
Observations and positioning quality of low-cost GNSS receivers: a review	38
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	37
Global characterisation of GNSS-PWV behaviour stratified by the Köppen-Geiger climate classification	37

A multi-beam polling multiple access method for LEO navigation signals	37
An exponential optimized fitting coefficients wide-area tropospheric corrections model and its application in PPP-IAR	37
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	36
Estimation of the L5 antenna phase center corrections for GPS satellites	35
Pseudorange characteristics of soil-transmitted GNSS signals and their application in soil moisture content retrieval	35
Analysis of periodic terms in the DYB frame for the solar radiation pressure model of BDS-3 MEO satellites	34
Estimation of ionospheric total electron content using GNSS observations derived from a smartphone	34
A PPP kinematic application on historical GPS data: the reprocessing of the ITASE98-99 Antarctica mission height profiles	33
Comparative study of ionospheric sporadic E occurrence rates using SNRnstd and S4 derived from GPS radio occultation	32
High-spin-rate roll angle measurement method based on GPS using single patch antenna	32
Modified NTCM models driven by the mean of global ionospheric total electron content (TEC): MNTCM-SHC0 and MNTCM-GEC	32
Impact of LEO configuration on GPS precise orbit determination with un-differenced ambiguity resolution	32
Correction: Observations and positioning quality of low-cost GNSS receivers: a review	31
Geocenter motion based on GNSS: a comparison between low-degree surface load coefficients and network shift parameters	31
OpATOM: an open-source toolbox for tomographic reconstruction of atmospheric wet refractivity model using GNSS observations	31
Ionospheric nonlinear interpolation model for Mid- and Low-latitude network RTK during solar maxima	30
Estimating urban building height based on smartphone GNSS LOS/NLOS signal classification	29
Neural network-compensated satellite clock bias prediction for Low Earth Orbit (LEO) satellites	29
Weak GPS signal tracking using block coherent integration based on NN discriminator	28
GNSS-interferometric reflectometry for sea level and ice freeboard measurements over the seasonal landfast ice cycles at Pituffik, Greenland	27
An integrated VKA-LSTM model for GNSS height time series prediction	27
TECFormer: a novel TEC prediction model integrating auto-correlation and self-attention mechanisms	27
Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	27
Optimization design of two-layer Walker constellation for LEO navigation augmentation using a dynamic multi-objective differential evolutionary algorithm based on elite guidance	26
Multipath mitigation in GNSS precise point positioning using multipath hierarchy for changing environments	26
A neural network model for satellite clock bias prediction via spatiotemporal feature integration	25
TDCP-assisted undifferenced multi-GNSS real-time satellite clock estimation	25
GNSS-RTK model: common-frequency versus mixed-frequency	25
Detection of ionospheric disturbances with a sparse GNSS network in simulated near-real time Mw 7.8 and Mw 7.5 Kahramanmaraş earthquake sequence	25
Rapid detection of GNSS time synchronization attacks via the enhanced code and carrier Doppler consistency test	25
A spatiotemporal framework for GNSS-based rainfall nowcasting with FluxFormer and attention-based graph neural networks	24
BDS time spoofing detection method based on the dynamic time warping	24
Precise orbit determination for LEO constellation based on onboard GNSS observations, inter-satellite links and ground tracking data	24
Risk overbounding for ionospheric gradient monitor using geometry-free double differenced carrier phase measurements	24
Effect of the 2011 Tohoku-Oki earthquake on continuous GNSS station motions	24
Evaluation of GPS and BDS-3 broadcast earth rotation parameters: a contribution to the ephemeris rotation error	24
POSGO: an open-source software for GNSS pseudorange positioning based on graph optimization	24
Stochastic modeling of the receiver clock parameter in Galileo-only and multi-GNSS PPP solutions	24
A precise global ionospheric total electron content forecasting model based on multi-neural network ensemble	24
A strategy to determine GRACE-FO kinematic orbit during the activation of flex power	24
Spatial interpolation of surface point velocity using an adaptive neuro-fuzzy inference system model: a comparative study	24
GNSS direct position estimation-inspired positioning with pseudorange correlogram for urban navigation	23
Effect of GNSS radio occultation observations on the prediction of the 2021 Henan rainstorm	23
State-space-varied moving horizon estimation for real-time PPP in the challenging low-cost antenna and chipset	23
Earth rotation parameters determination by integrating ground and LEO-spaceborne BDS-3 data	23
GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016	23
Local mitigation of higher-order ionospheric effects in DFMC SBAS and system performance evaluation	23
Accuracy assessment of measurements by laser RTK compared to precise total station and GNSS reference	22
Precipitable water vapor fusion of MODIS and ERA5 based on convolutional neural network	22
Environment-aware GNSS NLOS detection via unsupervised contrastive representation learning	22

Quantum-secured time transfer between precise timing facilities: a field trial with simulated satellite links	22
A modified adaptive factor-based Kalman filter for continuous urban navigation with low-cost sensors	22
Investigation into the nonlinear Kalman filter to correct the INS/GNSS integrated navigation system	22
Ionospheric disturbances of the January 15, 2022, Tonga volcanic eruption observed using the GNSS network in New Zealand	21
Correction: Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	21
The 2024 GPS accuracy improvement initiative	21
Performance evaluation of Galileo high accuracy service for PPP ambiguity resolution	21
Correction: Performance assessment of FORMOSAT-7/COSMIC-2 satellite orbit using GNSS	21
Correction: Robust GNSS spoofing detector using optimized machine learning model on embedded platforms	21
GPS phase center variation modeling using ambiguity-fixed carrier phase observations from low Earth orbit satellites	21
Initial performance assessment of the single-frequency (SF) service with the BeiDou satellite-based augmentation system (BDSBAS)	21
A flexible ionospheric function model constructed with the aid of NeQuick model	21
Improved tightly-coupled PPP/MEMS-INS integration with adaptive code pseudorange weighting and LSTM-based smoothing for urban canyon navigation	20
An effective automatic processing engine for improving the multi-GNSS constellation precise orbit prediction	20
Cloud-based near real-time sea level monitoring using GNSS reflectometry	20
Baltic sea GNSS jamming and spoofing emitter detection and localization in real-time using a time difference of arrival (TDOA) system	20
Evaluation of GNSS ionosphere prediction models Klobuchar-GPS, NTCM-G, and BDGIM: methodology and results for 2021–2024	20
Effects of equatorial plasma bubble-induced ionospheric gradients on GNSS PPP-RTK	20
An investigation of a voxel-based atmospheric pressure and temperature model	20
Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	20
Assessment of the orbital variations of GNSS GEO and IGSO satellites for monitoring ionospheric TEC	20
Characteristic analysis and calibration of CDMA and FDMA intra-system and inter-system biases in multi-GNSS precise point positioning	20
Connecting integer ambiguities to avoid reinitialization and keep VRS seamless switching for virtual grid-based NRTK	20
Stochastic modeling with robust Kalman filter for real-time kinematic GPS single-frequency positioning	19
Improved amplitude scintillation index $$\:{I}{{S}}_{4{c}}$$ with suppression of GNSS receiver background noise effects	19
Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations	19
Continuous time and frequency transfer achieved by multi-day GPS/Galileo/BDS integer precise point positioning	19
Enhancing smartphone precise point positioning to sub-meter accuracy in suburban environments: a new stochastic model and outlier diagnosis	19
Improved estimates of GNSS-inverted TWS through a benchmarking approach: a case study for the Seine river basin	19
A comparison of two PPP-RTK models: S-basis choice, network product precision, and user positioning performance	19
Clock bias prediction of navigation satellite based on BWO-CNN-BiGRU-attention model	19
Ocean swell height estimation from spaceborne GNSS-R data using hybrid deep learning model	19
Dynamic displacement monitoring by integrating high-rate GNSS and accelerometer: on the possibility of downsampling GNSS data at reference stations	19
Study of Chinese regional ionospheric TEC response to magnetic storms during April 23–25, 2023	18
Cross-type representation learning in GNSS: a new approach for enhanced SPP positioning through pseudorange residuals	18
Robust GNSS spoofing detector using optimized machine learning model on embedded platforms	18
ARAIM based on fault detector reuse for reducing computational load	18
BDS PPP-AR positioning performance with ionospheric disturbances at low-latitudes	18
Precise orbit determination for the Haiyang-2D satellite using new onboard BDS-3 B1C/B2a signal measurements	18
Adaptive Kalman filter based on integer ambiguity validation in moving base RTK	18
Enhancing FAIRness of GNSS RINEX data: A metadata-driven approach	18
Offsets in the EPN station position time series resulting from antenna/radome changes: PCC type-dependent model analyses	18
Analyzing the stochastic properties of code observation using various low-cost GNSS receivers	18
Pseudorange bias from inter-signal interference: the QZSS L5-L5S case	18
HASPPP: an open-source Galileo HAS embeddable RTKLIB decoding package	18
Mitigation of multipath effects in multi-GNSS and multi-frequency precise point positioning with multipath hemispherical maps	18
Exploring the role of PPP–RTK network configuration: a balance of server budget and user performance	18
A systematic approach for identifying optimal azimuth and elevation angle masks in GNSS-IR: validation through a sea level experiment	18
Doppler frequency code division multiple access method for LEO mega-constellation navigation systems	17
PySSR: an open-source python toolbox for real-time GNSS product analysis	17
PPP-B2b-RTK: a PPP-B2b augmentation method by using the SSR corrections from a single reference station	17
A method for compensating prediction errors to improve the orbit prediction accuracy of Starlink satellites	17
A significance test for mixed-integer models with application to GNSS	17
Impact of the October 2024 G4 geomagnetic storm on GNSS performance: observations and physical mechanisms	17
AFPD-DTW: an adaptive flex power detection method for post-processing and real-time applications	17
INSTINCT: a flow-based open-source PNT framework for satellite navigation and sensor fusion	17
An improved BDS-3 PPP-B2b positioning approach by estimating signal in space range errors	17
Correction: A meta-classification-based approach for outlier identification in GNSS networks	16
Determination of multi-GNSS differential code biases with satellite antenna phase center corrections	16
Fast satellite selection algorithm for GNSS multi-system based on Sherman–Morrison formula	16
Performance assessment of FORMOSAT-7/COSMIC-2 satellite orbit using GNSS	16
Performance of the local ionospheric model in resolving GPS baseline ambiguity over the Malaysian region	16
GNSS meteorological ensemble tools (GMET): a free-access online service for GNSS meteorological applications	16
Classifying continuous GNSS stations using integrated machine learning	16
Detecting outliers in local ionospheric model for GNSS precise positioning	16
C/N0 degradation in presence of chirp interference: theoretical model	16
Inter-system biases solution strategies in multi-GNSS kinematic precise point positioning	16
Performance assessment of the BDS-3 PPP-B2b service for real-time earthquake source description: a case study for the 2021 Mw 7.4 Maduo earthquake	16
A real-time accuracy prediction model on time-relative positioning method considering the correlation of position increment errors	16
A robust signal tracking algorithm for GPS and NavIC constellations	16
Beidou UPD estimation and assessment based on LEO-assisted regional stations observations	15
GNSS-RTK time series denoising based on deep learning and mode decomposition techniques for offshore platform	15
Graph-enabled spatio-temporal transformer for ionospheric prediction	15
Prediction of BDS-3 satellite clock bias based on EWT-LSTM ensemble model	15
Modeling tropospheric zenith wet delays in the Chinese mainland based on machine learning	15
HUTG: a next-generation IGS real‑time combined GIM via two‑step global and regional correction with robust weighting from HENU and UPC‑IonSAT	15
Spaceborne GNSS-R soil moisture retrieval from GPS/BDS-3/Galileo satellites	15
TEC map completion using a deep learning approach with prior knowledge	15
Pseudorange error prediction and correction using PSO-KELM for smartphone GNSS urban positioning	15
Undifferenced processing of COSMIC-2 radio occultation measurements with 1-Hz LEO clock corrections	15

Global geodetic parameter estimation based on the combination of GPS, Galileo and LEO satellites	15
Refinement of the solar radiation pressure model for the BDS-3 satellites with considering illuminated antennas	15
5G Impacts analysis on the Beidou RDSS system in 2.5 GHz band	15
Precise point positioning with an adaptive geometry-free cycle slip detection threshold under complex ionospheric conditions	15
GREAT-PVT: an open‑source software for multi-frequency and multi-GNSS PPP-AR and RTK	15
Precise orbit determination for BDS-3 GEO satellites enhanced by intersatellite links	15
Evaluation of real-time variometric approach and real-time precise point positioning in monitoring dynamic displacement based on high-rate (20 Hz) GPS Observations	14
Performance verification of GNSS/5G tightly coupled fusion positioning in urban occluded environments with a smartphone	14
Burst Doppler tracking and measurement in LEO-PNT base station receivers with ephemeris assistance	14
Velocity estimation method for high-spinning vehicle based on a side-mounted single patch antenna	14
A global zenith tropospheric delay model with ERA5 and GNSS-based ZTD difference correction	14
PPPH-UAV: an open-source software to process raw GNSS data obtained from unmanned aerial vehicles for generating photogrammetric products	14
Multi-layer ionospheric model construction constrained with NeQuick-G model	14
LSTM-based receiver clock modeling and prediction for GNSS urban positioning	14
Analyzing the impact of geometric constraints on GNSS positioning accuracy using realistic stochastic model	14
Decimeter-level vehicular positioning in urban environments with factor graph-based PPP and robust regression	14
A weighted mean temperature model using principal component analysis for Greenland	14
Exploring characteristics of BDS-3 PPP-B2b augmentation messages by a three-step analysis procedure	14
Assessment of sub-daily ocean tide loading errors and mitigation of their propagation in multi-GNSS position time series	14
A new global TEC empirical model based on fusing multi-source data	14
A new method for fault identification in real-time integrity monitoring of autonomous vehicles positioning using PPP-RTK	14
Global zenith wet delay modeling with surface meteorological data and machine learning	14
Open-source software for multi-GNSS inter-frequency clock bias estimation	14
A method to assess the quality of GNSS satellite phase bias products	14
Phase compression-holding modulation for C-band navigation	13
Assessing all-frequency GPS/Galileo/BDS PPP-RTK in GNSS challenging environments	13
Construction of a meteorological application system based on BDS ground-based augmentation network and water vapor products validation	13
Integrated satellite clock and code/phase bias combination in the third IGS reprocessing campaign	13
Enhancing multi-GNSS positioning performances in harsh environments via a refined joint troposphere-multipath hemispherical map	13
Impact of Beidou-3 upgrades and maintenance on code/phase biases estimation and PPP ambiguity resolution	13
Anomalous ambiguity detection between reference stations based on Box-Cox transformation of tropospheric residual estimation	13
Sea target detection using the GNSS reflection signals	13
Enhancing PPP-RTK performance at low latitudes through mitigation of ionospheric scintillation effects	13
An open-source software package for Precise Point Positioning: raPPPid	13
Analysis of multi-system and multi-polarization GNSS-R sensitivity to sea surface wind speed retrieval using Tianmu-1 data	13
Accurate topside ionospheric TEC estimation using LEO satellites with onboard GPS observations	13
Snow depth retrieval using GPS signal-to-noise ratio data based on improved complete ensemble empirical mode decomposition	13
Simultaneous estimation of inter-frequency clock biases and clock offsets with triple-frequency GPS data: undifferenced and uncombined methodology and impact analysis	13
Modeling range biases from SLR residuals to GNSS-based orbits of active Low Earth Orbiters – insights from a study based on a dozen of satellites and 21 years of data	13
An INS-assisted vector tracking receiver with multipath error estimation for dense urban canyons	13
Estimation of BDS-2/3 phase observable-specific signal bias aided by double-differenced model: an exploration of fast BDS-2/3 real-time PPP	13
GPS signal acquisition based on deep convolutional neural network and post-correlation methods	13
A fusion ZTD grid model utilizing ERA5 and GNSS raw observations for enhancing PPP and optimizing PWV forecasts under extreme weather conditions	13
A design of base-station-aided LEO/GPS joint positioning framework	13
Implementation of solution separation-based Kalman filter integrity monitoring against all-source faults for multi-sensor integrated navigation	13
Advanced, 3D map aided (3DMA) GNSS simulations for NRTK performance prediction	13
An adaptive hybrid blanking algorithm to mitigate the DME pulse interference on BDS B2a receivers	13
Characteristics of Beidou-2 flex power and its impact on precise point positioning with ambiguity resolution	13
GNSS position-aided delay-locked loops for accurate urban navigation	12
Enhancing the BDGIM model for ionospheric delay correction using GNSS LEO occultation data during high solar activity	12
Facilitated interferometric reflectometry evaluation and its application in monitoring three typhoon storm surges in Hong Kong with multi-GNSS constellation	12
Timekeeping algorithm based on the cooperative covariance matrix of clock differences	12
Can the phase of SNR oscillations in GNSS-IR be used to estimate sea-level height?	12
Maneuver detection and estimation for LEO real-time precise orbit determination with GNSS observations	12
GNSS water vapor tomography based on Kalman filter with optimized noise covariance	12
Real-time multipath mitigation based on spatiotemporal correlations in BDS precise point positioning	12
GHASP: a Galileo HAS parser	12
PPP-ARISEN: an open-source precise point positioning software with ambiguity resolution for interdisciplinary research of seismology, geodesy and geodynamics	12
A DIA method based on maximum a posteriori estimate for multiple outliers	12
Quality monitoring of real-time PPP service using isolation forest-based residual anomaly detection	12