GPS Solutions

Article	Citations
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	95
Rigorous and fast constraints transformations at the solution level: case studies for regional and global GNSS networks	89
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	86
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	75
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	69
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	58
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	51
Performance assessment of GNSS-IR altimetry using signal-to-noise ratio data from a Huawei P30 smartphone	48
STL-GT: graph-structured learning based transformer for GNSS positioning enhancement in urban environments	44
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	43
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	41
A weighted mean temperature (Tm) augmentation method based on global latitude zone	40
Filter and piecewise smoother on the matrix Lie group	36
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	34
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	34
Enhancing smartphone-based vehicle navigation in deep urban areas using machine learning-aided PPP-RTK	34
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	34
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	33
Observations and positioning quality of low-cost GNSS receivers: a review	33
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	29
Optimization design of two-layer Walker constellation for LEO navigation augmentation using a dynamic multi-objective differential evolutionary algorithm based on elite guidance	29
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	29
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	29
Pseudorange characteristics of soil-transmitted GNSS signals and their application in soil moisture content retrieval	28
High-spin-rate roll angle measurement method based on GPS using single patch antenna	28

GNSS-RTK model: common-frequency versus mixed-frequency	28
Rapid detection of GNSS time synchronization attacks via the enhanced code and carrier Doppler consistency test	28
Comparative study of ionospheric sporadic E occurrence rates using SNRnstd and S4 derived from GPS radio occultation	27
Correction: Observations and positioning quality of low-cost GNSS receivers: a review	27
A PPP kinematic application on historical GPS data: the reprocessing of the ITASE98-99 Antarctica mission height profiles	27
Estimation of the L5 antenna phase center corrections for GPS satellites	27
Multipath mitigation in GNSS precise point positioning using multipath hierarchy for changing environments	26
POSGO: an open-source software for GNSS pseudorange positioning based on graph optimization	26
Modified NTCM models driven by the mean of global ionospheric total electron content (TEC): MNTCM-SHC0 and MNTCM-GEC	25
Analysis of periodic terms in the DYB frame for the solar radiation pressure model of BDS-3 MEO satellites	25
Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	25
Estimating urban building height based on smartphone GNSS LOS/NLOS signal classification	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	24
Impact of LEO configuration on GPS precise orbit determination with un-differenced ambiguity resolution	23
Estimation of ionospheric total electron content using GNSS observations derived from a smartphone	23
Precise orbit determination for LEO constellation based on onboard GNSS observations, inter-satellite links and ground tracking data	22
Local mitigation of higher-order ionospheric effects in DFMC SBAS and system performance evaluation	22
Full-ISL clock offset estimation and prediction algorithm for BDS3	22
Spatial interpolation of surface point velocity using an adaptive neuro-fuzzy inference system model: a comparative study	22
Precipitable water vapor fusion of MODIS and ERA5 based on convolutional neural network	21
Investigation into the nonlinear Kalman filter to correct the INS/GNSS integrated navigation system	21
State-space-varied moving horizon estimation for real-time PPP in the challenging low-cost antenna and chipset	21
Quantum-secured time transfer between precise timing facilities: a field trial with simulated satellite links	21
GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016	21
Earth rotation parameters determination by integrating ground and LEO-spaceborne BDS-3 data	20
Performance evaluation of BDS-3 PPP-B2b precise point positioning service	20
Stochastic modeling of the receiver clock parameter in Galileo-only and multi-GNSS PPP solutions	20
BDS time spoofing detection method based on the dynamic time warping	19
GNSS direct position estimation-inspired positioning with pseudorange correlogram for urban navigation	19
Effect of the 2011 Tohoku-Oki earthquake on continuous GNSS station motions	19
Risk overbounding for ionospheric gradient monitor using geometry-free double differenced carrier phase measurements	19
Improving estimates of ocean tide loading displacements with multi-GNSS: a case study of Hong Kong	19
An accurate train positioning method using tightly-coupled GPS + BDS PPP/IMU strategy	19
Evaluation of GPS and BDS-3 broadcast earth rotation parameters: a contribution to the ephemeris rotation error	19
Ionospheric disturbances of the January 15, 2022, Tonga volcanic eruption observed using the GNSS network in New Zealand	19
A comparison of two PPP-RTK models: S-basis choice, network product precision, and user positioning performance	18
Galileo high accuracy service: initial definition and performance	18
A modified adaptive factor-based Kalman filter for continuous urban navigation with low-cost sensors	18
Characteristic analysis and calibration of CDMA and FDMA intra-system and inter-system biases in multi-GNSS precise point positioning	18
Performance evaluation of Galileo high accuracy service for PPP ambiguity resolution	18
Effect of GNSS radio occultation observations on the prediction of the 2021 Henan rainstorm	18
Connecting integer ambiguities to avoid reinitialization and keep VRS seamless switching for virtual grid-based NRTK	18
A strategy to determine GRACE-FO kinematic orbit during the activation of flex power	18
Correction: Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	17
Cloud-based near real-time sea level monitoring using GNSS reflectometry	17
Assessment of the orbital variations of GNSS GEO and IGSO satellites for monitoring ionospheric TEC	17
Clock bias prediction of navigation satellite based on BWO-CNN-BiGRU-attention model	17
Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations	17
Stochastic modeling with robust Kalman filter for real-time kinematic GPS single-frequency positioning	16
Advanced space rubidium atomic frequency standard for satellite navigation	16

GPS phase center variation modeling using ambiguity-fixed carrier phase observations from low Earth orbit satellites	16
Initial performance assessment of the single-frequency (SF) service with the BeiDou satellite-based augmentation system (BDSBAS)	16
Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	16
The 2024 GPS accuracy improvement initiative	16
Enhancing smartphone precise point positioning to sub-meter accuracy in suburban environments: a new stochastic model and outlier diagnosis	16
Updated GNSS velocity solution in the Nordic and Baltic countries with a semi-automatic offset detection method	16
An effective automatic processing engine for improving the multi-GNSS constellation precise orbit prediction	16
Precise orbit determination for the Haiyang-2D satellite using new onboard BDS-3 B1C/B2a signal measurements	16
Evaluation of GNSS ionosphere prediction models Klobuchar-GPS, NTCM-G, and BDGIM: methodology and results for 2021–2024	15
Enhancing FAIRness of GNSS RINEX data: A metadata-driven approach	15
An investigation of a voxel-based atmospheric pressure and temperature model	15
BDS PPP-AR positioning performance with ionospheric disturbances at low-latitudes	15
PPP-B2b-RTK: a PPP-B2b augmentation method by using the SSR corrections from a single reference station	15
Exploring the role of PPP–RTK network configuration: a balance of server budget and user performance	15
A method for compensating prediction errors to improve the orbit prediction accuracy of Starlink satellites	15
Ocean swell height estimation from spaceborne GNSS-R data using hybrid deep learning model	15
Dynamic displacement monitoring by integrating high-rate GNSS and accelerometer: on the possibility of downsampling GNSS data at reference stations	15
Continuous time and frequency transfer achieved by multi-day GPS/Galileo/BDS integer precise point positioning	15
Inter-system biases solution strategies in multi-GNSS kinematic precise point positioning	15
Mitigation of multipath effects in multi-GNSS and multi-frequency precise point positioning with multipath hemispherical maps	15
An improved BDS-3 PPP-B2b positioning approach by estimating signal in space range errors	15
Ionosphere-weighted undifferenced and uncombined PPP-RTK: theoretical models and experimental results	15
A flexible ionospheric function model constructed with the aid of NeQuick model	15
Effects of equatorial plasma bubble-induced ionospheric gradients on GNSS PPP-RTK	15
Doppler frequency code division multiple access method for LEO mega-constellation navigation systems	15
Modeling wide-area tropospheric delay corrections for fast PPP ambiguity resolution	15
GNSS meteorological ensemble tools (GMET): a free-access online service for GNSS meteorological applications	15
Testing of general relativity with two Galileo satellites in eccentric orbits	14
Analyzing the stochastic properties of code observation using various low-cost GNSS receivers	14
Pseudorange bias from inter-signal interference: the QZSS L5-L5S case	14
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	14
Adaptive Kalman filter based on integer ambiguity validation in moving base RTK	14
A systematic approach for identifying optimal azimuth and elevation angle masks in GNSS-IR: validation through a sea level experiment	14
A robust method for 3-D surface displacement fields combining GNSS and single-orbit InSAR measurements with directional constraint from elasticity model	14
Cross-type representation learning in GNSS: a new approach for enhanced SPP positioning through pseudorange residuals	14
Performance assessment of a low-complexity autoregressive Kalman filter for GNSS carrier tracking using real scintillation time series	14
Establishment and assessment of a zenith wet delay (ZWD) augmentation model	14
Offsets in the EPN station position time series resulting from antenna/radome changes: PCC type-dependent model analyses	14
Optical crosslinks and satellite synchronization for GNSS, communications, and beyond	13
Correction: A meta-classification-based approach for outlier identification in GNSS networks	13
Study of Chinese regional ionospheric TEC response to magnetic storms during April 23–25, 2023	13
Performance of the local ionospheric model in resolving GPS baseline ambiguity over the Malaysian region	13
A real-time accuracy prediction model on time-relative positioning method considering the correlation of position increment errors	13
5G Impacts analysis on the Beidou RDSS system in 2.5 GHz band	13
Outliers and uncertainties in GNSS ZTD estimates from double-difference processing and precise point positioning	13
HASPPP: an open-source Galileo HAS embeddable RTKLIB decoding package	13
Classifying continuous GNSS stations using integrated machine learning	13
A robust signal tracking algorithm for GPS and NavIC constellations	13
Fast satellite selection algorithm for GNSS multi-system based on Sherman–Morrison formula	13
Assessment of regularization techniques in GNSS tropospheric tomography based on single- and dual-frequency observations	13
ARAIM based on fault detector reuse for reducing computational load	13
Undifferenced processing of COSMIC-2 radio occultation measurements with 1-Hz LEO clock corrections	13
Performance evaluation of BDS-2/BDS-3 combined precise time transfer with B1I/B2I/B3I/B1C/B2a five-frequency observations	12
C/N0 degradation in presence of chirp interference: theoretical model	12
GNSS-RTK time series denoising based on deep learning and mode decomposition techniques for offshore platform	12
Performance assessment of FORMOSAT-7/COSMIC-2 satellite orbit using GNSS	12
Graph-enabled spatio-temporal transformer for ionospheric prediction	12
Modeling tropospheric zenith wet delays in the Chinese mainland based on machine learning	12
Global zenith wet delay modeling with surface meteorological data and machine learning	12
Precise orbit determination for BDS-3 GEO satellites enhanced by intersatellite links	12
Decimeter-level vehicular positioning in urban environments with factor graph-based PPP and robust regression	12
Spaceborne GNSS-R soil moisture retrieval from GPS/BDS-3/Galileo satellites	12
Beidou UPD estimation and assessment based on LEO-assisted regional stations observations	12
Detecting outliers in local ionospheric model for GNSS precise positioning	12
GREAT-PVT: an open‑source software for multi-frequency and multi-GNSS PPP-AR and RTK	12
Refinement of the solar radiation pressure model for the BDS-3 satellites with considering illuminated antennas	12
Modeling seasonal oscillations in GNSS time series with Complementary Ensemble Empirical Mode Decomposition	12
Prediction of BDS-3 satellite clock bias based on EWT-LSTM ensemble model	12
A global zenith tropospheric delay model with ERA5 and GNSS-based ZTD difference correction	11
Exploring characteristics of BDS-3 PPP-B2b augmentation messages by a three-step analysis procedure	11
Open-source software for multi-GNSS inter-frequency clock bias estimation	11
Evaluation of real-time variometric approach and real-time precise point positioning in monitoring dynamic displacement based on high-rate (20 Hz) GPS Observations	11
Fast determination of geometric matrix in ionosphere tomographic inversion with unevenly spaced curvilinear voxels	11
A new method for fault identification in real-time integrity monitoring of autonomous vehicles positioning using PPP-RTK	11
A new global TEC empirical model based on fusing multi-source data	11
Effect of the polar cap ionospheric sporadic-E layer on GNSS-based positioning: a case study at Resolute Bay, Canada, September 5, 2012	11
A weighted mean temperature model using principal component analysis for Greenland	11
Velocity estimation method for high-spinning vehicle based on a side-mounted single patch antenna	11
A method to assess the quality of GNSS satellite phase bias products	11
Assessing all-frequency GPS/Galileo/BDS PPP-RTK in GNSS challenging environments	11

Study of ionospheric responses over China during September 7–8, 2017 using GPS, Beidou (GEO), and Swarm satellite observations	11
Performance verification of GNSS/5G tightly coupled fusion positioning in urban occluded environments with a smartphone	11
Assessment of sub-daily ocean tide loading errors and mitigation of their propagation in multi-GNSS position time series	11
An INS-assisted vector tracking receiver with multipath error estimation for dense urban canyons	10
Analyzing the impact of geometric constraints on GNSS positioning accuracy using realistic stochastic model	10
Enhancing PPP-RTK performance at low latitudes through mitigation of ionospheric scintillation effects	10
An open-source software package for Precise Point Positioning: raPPPid	10
Interactive multiple-model vertical vibration detection of structures based on high-frequency GNSS observations	10
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	10
Construction of a meteorological application system based on BDS ground-based augmentation network and water vapor products validation	10
Sea target detection using the GNSS reflection signals	10
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	10
GPS signal acquisition based on deep convolutional neural network and post-correlation methods	10
Anomalous ambiguity detection between reference stations based on Box-Cox transformation of tropospheric residual estimation	10
An adaptive hybrid blanking algorithm to mitigate the DME pulse interference on BDS B2a receivers	10
Integrated satellite clock and code/phase bias combination in the third IGS reprocessing campaign	10
Phase compression-holding modulation for C-band navigation	10
DOA tracking using an improved direction lock loop based on a three-element L-shaped array	10
Characteristics of Beidou-2 flex power and its impact on precise point positioning with ambiguity resolution	10
Simultaneous estimation of inter-frequency clock biases and clock offsets with triple-frequency GPS data: undifferenced and uncombined methodology and impact analysis	10
GNSS position-aided delay-locked loops for accurate urban navigation	10
A design of base-station-aided LEO/GPS joint positioning framework	9
Can the phase of SNR oscillations in GNSS-IR be used to estimate sea-level height?	9
Snow depth retrieval using GPS signal-to-noise ratio data based on improved complete ensemble empirical mode decomposition	9
Fast GNSS spoofing detection based on LSTM-detect model	9
NLOS signal detection and correction for smartphone using convolutional neural network and variational mode decomposition in urban environment	9
GNSS spoofing detection using a fuzzy classifier based on time–frequency analysis of the autocorrelation function	9
Quality monitoring of real-time PPP service using isolation forest-based residual anomaly detection	9
Innovation-based Kalman filter fault detection and exclusion method against all-source faults for tightly coupled GNSS/INS/Vision integration	9
GNSS water vapor tomography based on Kalman filter with optimized noise covariance	9
Improving precise point positioning (PPP) performance with best integer equivariant (BIE) estimator	9
Enhancing the BDGIM model for ionospheric delay correction using GNSS LEO occultation data during high solar activity	9
Improving performances of GNSS positioning correction using multiview deep reinforcement learning with sparse representation	9
PPP-ARISEN: an open-source precise point positioning software with ambiguity resolution for interdisciplinary research of seismology, geodesy and geodynamics	9
Real-time multipath mitigation based on spatiotemporal correlations in BDS precise point positioning	9
Precise disciplining of a chip-scale atomic clock using PPP with broadcast ephemerides	9
Timekeeping algorithm based on the cooperative covariance matrix of clock differences	9
GHASP: a Galileo HAS parser	9
Satellite laser ranging to GNSS-based Swarm orbits with handling of systematic errors	9
Multi-constellation single-frequency ionospheric-free precise point positioning with low-cost receivers	9
Maneuver detection and estimation for LEO real-time precise orbit determination with GNSS observations	9
BDS-3 PPP-B2b and Galileo HAS tightly integrated real-time PPP	9
Facilitated interferometric reflectometry evaluation and its application in monitoring three typhoon storm surges in Hong Kong with multi-GNSS constellation	9
Implementation of solution separation-based Kalman filter integrity monitoring against all-source faults for multi-sensor integrated navigation	9
A DIA method based on maximum a posteriori estimate for multiple outliers	9
Enhancing multi-GNSS positioning performances in harsh environments via a refined joint troposphere-multipath hemispherical map	9
A two-step non-nominal troposphere monitor for GBAS	9
Estimating sea surface swell height using a hybrid model combining CNN, ConvLSTM, and FCN based on spaceborne GNSS-R data from the CYGNSS mission	9
Enhancing sea level inversion accuracy with a novel phase-based error correction method and multi-GNSS combination approach	8
Accurate analytical non-gravitational force model for precise orbit determination of QZS-1, 2, and 4	8
Influence of flooding on GPS carrier-to-noise ratio and water content variation analysis: a case study in Zhengzhou, China	8
Precise orbit determination of LEO satellites: a systematic review	8
Investigating temporal and spatial patterns in the stochastic component of ZTD time series over Europe	8
Comparison and evaluation of carrier phase PPP and single difference time transfer with multi-GNSS ambiguity resolution	8
LEO Doppler-aided GNSS position estimation	8
Long-term performance analysis of BDS-3 precise point positioning (PPP-B2b) service	8
Multi-GNSS PPP solutions with different handling of system-specific receiver clock parameters and inter-system biases	8
Reduction research on performance index system of satellite navigation system spoofing	8
PPP ambiguity resolution based on factor graph optimization	8
Three-dimensional ionospheric tomography based on compressed sensing	8
New time-differenced carrier phase approach to GNSS/INS integration	8
Vector angle grouping-based solution separation for multipath/NLOS detection and exclusion with the enhancement of doppler test	8
Real-time cloud computing of GNSS measurements from smartphones and mobile devices for enhanced positioning and navigation	8
A two-antenna GNSS approach to determine soil moisture content and vegetation growth status	8
A system for measuring the scintillation index based on the results of monitoring of small-scale fluctuations in the total electron content of the ionosphere	8
Estimating ionospheric power spectral density for long-range RTK positioning using uncombined observations	8
Design and deployment of a hybrid neural network for real-time GPS correction in slow moving, low SWaP, UAV flight systems	8
Aligning the Galileo code biases on the pilot and mixed signal channels to improve precise point positioning	8
A real-time ZTD model in China using ERA5 and GNSS based on empirical orthogonal function method	8
Improved forward and backward adaptive smoothing algorithm	8
Evaluation of tropospheric estimates from CentipedeRTK, a collaborative network of low-cost GNSS stations	8
Multipath hemispherical map model with geographic cut-off elevation constraints for real-time GNSS monitoring in complex environments	8
Analysis of preliminary results from distributed autonomous timekeeping on Beidou-3 satellites	8
An ambiguity subset selection algorithm based on the variation of check factors for BDS-3/BDS-2/GPS precise point positioning	8
Can we measure sea surface wind speed with a smartphone?	8
GLONASS-K2 signal analysis	8
Regional ionospheric correction generation for GNSS PPP-RTK: theoretical analyses and a new interpolation method	8
Employing artificial intelligence in Galileo orbital error prediction for real-time offline positioning	8
Global single-epoch narrow-lane ambiguity resolution with multi-constellation and multi-frequency precise point positioning	8
A GNSS interference source tracking method using the continuous-discrete Gaussian kernel quadrature Kalman filter	8
A low-cost integrated navigation system based on factor graph nonlinear optimization for autonomous flight	8
An enhanced positioning algorithm module for low-cost GNSS/MEMS integration based on matching straight lane lines in HD maps	8
Two modified multi-frequency GNSS approaches to estimate the pseudorange observable-specific signal bias for the CDMA and FDMA models	7
Method and performance of time holdover for RT-PPT receivers utilizing on-line estimation of clock parameters	7
Analysis of factors influencing significant wave height retrieval and performance improvement in spaceborne GNSS-R	7
Adaptive non-holonomic constraint aiding Multi-GNSS PPP/INS tightly coupled navigation in the urban environment	7
Combined decoupled clock and integer‑estimable models applied to CDMA + FDMA single-difference network RTK	7
GNSS jammer localization in urban areas based on prediction/optimization and ray-tracing	7
A comprehensive evaluation of utilizing BeiDou data to estimate snow depths from two ground-based stations	7
A new large-area hierarchical PPP-RTK service strategy	7
Multichannel PredRNN: a storm-time TEC map forecasting model using both temporal and spatial memories	7
Modeling and predicting inter-frequency clock bias of BDS-2 GEO, IGSO and MEO satellites for triple-frequency precise point positioning	7
Conventional and neural network-based water vapor density model for GNSS troposphere tomography	7
A robust multi-constellation time-differenced carrier phase solution	7
Mitigating the impacts of ionospheric irregularities on GPS precise positioning by refined cycle slip threshold	7