GPS Solutions

Article	Citations
A weighted mean temperature (Tm) augmentation method based on global latitude zone	88
Multipath error extraction and mitigation based on refined wavelet level and threshold selection	85
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast	77
Rigorous and fast constraints transformations at the solution level: case studies for regional and global GNSS networks	74
Optimization of undifferenced and uncombined PPP stochastic model based on covariance component estimation	74
Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections	65
Vehicle mounted single-antenna GNSS spoofing detection method based on motion trajectory	50
Attitude estimation in challenging environments by integrating low-cost dual-antenna GNSS and MEMS MARG sensor	46
M_FCB: an open‑source software for multi‑GNSS fractional cycle bias estimation	45
Robust train length calculation and monitoring method using GNSS multi-constellation moving-baseline positioning resolution	44
GNSS performance degradation under meaconing in civil aviation: pseudorange and position models	42
Tropospheric parameters from multi-GNSS and numerical weather models: case study of severe precipitation and flooding in Germany in July 2021	41
Observations and positioning quality of low-cost GNSS receivers: a review	39
Filter and piecewise smoother on the matrix Lie group	37
Non-holonomic constraint (NHC)-assisted GNSS/SINS positioning using a vehicle motion state classification (VMSC)-based convolution neural network	36
High-precision velocity determination using mass-market Android GNSS measurements in the case of anomalous clock variations	34
Interannual variability of vertical land motion over High Mountain Central Asia from GPS and GRACE/GRACE-FO observations	33
Performance assessment of GNSS-IR altimetry using signal-to-noise ratio data from a Huawei P30 smartphone	33
Modeling of regional GNSS network using adaptive boosting algorithm: a case study in the Xinjiang Uyghur Autonomous Region	32
Optimization design of two-layer Walker constellation for LEO navigation augmentation using a dynamic multi-objective differential evolutionary algorithm based on elite guidance	31
Design of a miniaturized geodetic-grade GNSS reference antenna covering Bs band	31
Analysis of GPS satellite flex power in 2023 and its effects on differential code bias variations	29
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

Correction: Observations and positioning quality of low-cost GNSS receivers: a review	27
GNSS-RTK model: common-frequency versus mixed-frequency	27
Impact of LEO configuration on GPS precise orbit determination with un-differenced ambiguity resolution	27
Estimation of ionospheric total electron content using GNSS observations derived from a smartphone	26
Estimation of the L5 antenna phase center corrections for GPS satellites	26
High-spin-rate roll angle measurement method based on GPS using single patch antenna	26
Precise orbit determination for LEO constellation based on onboard GNSS observations, inter-satellite links and ground tracking data	26
Rapid detection of GNSS time synchronization attacks via the enhanced code and carrier Doppler consistency test	26
A new fuzzy strong tracking cubature Kalman filter for INS/GNSS	26
A PPP kinematic application on historical GPS data: the reprocessing of the ITASE98-99 Antarctica mission height profiles	26
POSGO: an open-source software for GNSS pseudorange positioning based on graph optimization	25
Full-ISL clock offset estimation and prediction algorithm for BDS3	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
Multipath mitigation in GNSS precise point positioning using multipath hierarchy for changing environments	25
Spatial interpolation of surface point velocity using an adaptive neuro-fuzzy inference system model: a comparative study	24
Multipath mitigation in GNSS precise point positioning based on trend-surface analysis and multipath hemispherical map	24
Investigation into the nonlinear Kalman filter to correct the INS/GNSS integrated navigation system	23
Local mitigation of higher-order ionospheric effects in DFMC SBAS and system performance evaluation	22
Quantum-secured time transfer between precise timing facilities: a field trial with simulated satellite links	22
Performance evaluation of Galileo high accuracy service for PPP ambiguity resolution	21
A strategy to determine GRACE-FO kinematic orbit during the activation of flex power	21
Risk overbounding for ionospheric gradient monitor using geometry-free double differenced carrier phase measurements	20
Effect of the 2011 Tohoku-Oki earthquake on continuous GNSS station motions	20
BDS time spoofing detection method based on the dynamic time warping	20
Evaluation of GPS and BDS-3 broadcast earth rotation parameters: a contribution to the ephemeris rotation error	20
Effect of GNSS radio occultation observations on the prediction of the 2021 Henan rainstorm	20
Improving estimates of ocean tide loading displacements with multi-GNSS: a case study of Hong Kong	19
Ionospheric disturbances of the January 15, 2022, Tonga volcanic eruption observed using the GNSS network in New Zealand	19
An accurate train positioning method using tightly-coupled GPS + BDS PPP/IMU strategy	19
State-space-varied moving horizon estimation for real-time PPP in the challenging low-cost antenna and chipset	19
Machine learning-based approach to GPS antijamming	19
GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016	19
A modified adaptive factor-based Kalman filter for continuous urban navigation with low-cost sensors	19
Spatio-temporal analysis of TEC during solar activity periods using support vector machine	19
Stochastic modeling of the receiver clock parameter in Galileo-only and multi-GNSS PPP solutions	19
Precipitable water vapor fusion of MODIS and ERA5 based on convolutional neural network	19
GNSS direct position estimation-inspired positioning with pseudorange correlogram for urban navigation	18
Galileo high accuracy service: initial definition and performance	18
Earth rotation parameters determination by integrating ground and LEO-spaceborne BDS-3 data	18
Performance evaluation of BDS-3 PPP-B2b precise point positioning service	18
An investigation of a voxel-based atmospheric pressure and temperature model	17
The 2024 GPS accuracy improvement initiative	17
Local ionospheric plasma bubble revealed by BDS Geostationary Earth Orbit satellite observations	17
An effective automatic processing engine for improving the multi-GNSS constellation precise orbit prediction	16
Correction: Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	16
Connecting integer ambiguities to avoid reinitialization and keep VRS seamless switching for virtual grid-based NRTK	16
Detection of GNSS antenna oscillatory motion and multipath conditions via exploitation of multipath-induced SNR variations	16
A comparison of two PPP-RTK models: S-basis choice, network product precision, and user positioning performance	16
Clock bias prediction of navigation satellite based on BWO-CNN-BiGRU-attention model	16
Characteristic analysis and calibration of CDMA and FDMA intra-system and inter-system biases in multi-GNSS precise point positioning	16

GPS phase center variation modeling using ambiguity-fixed carrier phase observations from low Earth orbit satellites	15
Effects of equatorial plasma bubble-induced ionospheric gradients on GNSS PPP-RTK	15
Continuous time and frequency transfer achieved by multi-day GPS/Galileo/BDS integer precise point positioning	15
Multipath extraction and mitigation for static relative positioning based on adaptive layer wavelet packets, bootstrapped searches and CNR constraints	15
Stochastic modeling with robust Kalman filter for real-time kinematic GPS single-frequency positioning	15
Dynamic displacement monitoring by integrating high-rate GNSS and accelerometer: on the possibility of downsampling GNSS data at reference stations	15
Intercomparison of multi-GNSS signals characteristics acquired by a low-cost receiver connected to various low-cost antennas	15
Assessment of the orbital variations of GNSS GEO and IGSO satellites for monitoring ionospheric TEC	15
Comparisons of CODE and CNES/CLS GPS satellite bias products and applications in Sentinel-3 satellite precise orbit determination	15
Precise orbit determination for the Haiyang-2D satellite using new onboard BDS-3 B1C/B2a signal measurements	15
Ocean swell height estimation from spaceborne GNSS-R data using hybrid deep learning model	15
Advanced space rubidium atomic frequency standard for satellite navigation	15
Enhancing smartphone precise point positioning to sub-meter accuracy in suburban environments: a new stochastic model and outlier diagnosis	15
Initial performance assessment of the single-frequency (SF) service with the BeiDou satellite-based augmentation system (BDSBAS)	15
A method for compensating prediction errors to improve the orbit prediction accuracy of Starlink satellites	14
Cloud-based near real-time sea level monitoring using GNSS reflectometry	14
Offsets in the EPN station position time series resulting from antenna/radome changes: PCC type-dependent model analyses	14
Mitigation of multipath effects in multi-GNSS and multi-frequency precise point positioning with multipath hemispherical maps	14
Updated GNSS velocity solution in the Nordic and Baltic countries with a semi-automatic offset detection method	14
Doppler frequency code division multiple access method for LEO mega-constellation navigation systems	14
A robust method for 3-D surface displacement fields combining GNSS and single-orbit InSAR measurements with directional constraint from elasticity model	14
Modeling wide-area tropospheric delay corrections for fast PPP ambiguity resolution	14
Ionosphere-weighted undifferenced and uncombined PPP-RTK: theoretical models and experimental results	14
GNSS meteorological ensemble tools (GMET): a free-access online service for GNSS meteorological applications	14
Adaptive Kalman filter based on integer ambiguity validation in moving base RTK	14
Testing of general relativity with two Galileo satellites in eccentric orbits	14
Cross-type representation learning in GNSS: a new approach for enhanced SPP positioning through pseudorange residuals	13
An improved BDS-3 PPP-B2b positioning approach by estimating signal in space range errors	13
Performance of the local ionospheric model in resolving GPS baseline ambiguity over the Malaysian region	13
Optical crosslinks and satellite synchronization for GNSS, communications, and beyond	13
A real-time accuracy prediction model on time-relative positioning method considering the correlation of position increment errors	13
Modified atmospheric pressure extrapolation model using ERA5 for geodetic applications	13
BDS PPP-AR positioning performance with ionospheric disturbances at low-latitudes	13
Enhancing FAIRness of GNSS RINEX data: A metadata-driven approach	13
A systematic approach for identifying optimal azimuth and elevation angle masks in GNSS-IR: validation through a sea level experiment	13
ARAIM based on fault detector reuse for reducing computational load	13
Establishment and assessment of a zenith wet delay (ZWD) augmentation model	13
A robust signal tracking algorithm for GPS and NavIC constellations	13
C/N0 degradation in presence of chirp interference: theoretical model	13
Assessment of regularization techniques in GNSS tropospheric tomography based on single- and dual-frequency observations	13
Classifying continuous GNSS stations using integrated machine learning	13
Performance assessment of a low-complexity autoregressive Kalman filter for GNSS carrier tracking using real scintillation time series	13
Study of Chinese regional ionospheric TEC response to magnetic storms during April 23–25, 2023	13
HASPPP: an open-source Galileo HAS embeddable RTKLIB decoding package	13
Pseudorange bias from inter-signal interference: the QZSS L5-L5S case	13
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	13
Spaceborne GNSS-R soil moisture retrieval from GPS/BDS-3/Galileo satellites	13
Undifferenced processing of COSMIC-2 radio occultation measurements with 1-Hz LEO clock corrections	13
A deep fading assessment of the modernized L2C and L5 signals for low-latitude regions	13
Outliers and uncertainties in GNSS ZTD estimates from double-difference processing and precise point positioning	13
Inter-system biases solution strategies in multi-GNSS kinematic precise point positioning	13
Exploring the role of PPP–RTK network configuration: a balance of server budget and user performance	13
Beidou UPD estimation and assessment based on LEO-assisted regional stations observations	12
Performance evaluation of BDS-2/BDS-3 combined precise time transfer with B1I/B2I/B3I/B1C/B2a five-frequency observations	12
Correction: A meta-classification-based approach for outlier identification in GNSS networks	12
Modeling tropospheric zenith wet delays in the Chinese mainland based on machine learning	12
5G Impacts analysis on the Beidou RDSS system in 2.5 GHz band	12
Graph-enabled spatio-temporal transformer for ionospheric prediction	12
A global zenith tropospheric delay model with ERA5 and GNSS-based ZTD difference correction	12
Global zenith wet delay modeling with surface meteorological data and machine learning	12
Fast satellite selection algorithm for GNSS multi-system based on Sherman–Morrison formula	12
Detecting outliers in local ionospheric model for GNSS precise positioning	12
Modeling seasonal oscillations in GNSS time series with Complementary Ensemble Empirical Mode Decomposition	12
Precise orbit determination for BDS-3 GEO satellites enhanced by intersatellite links	12
Open-source software for multi-GNSS inter-frequency clock bias estimation	11
Assessment of sub-daily ocean tide loading errors and mitigation of their propagation in multi-GNSS position time series	11
A new global TEC empirical model based on fusing multi-source data	11
Performance verification of GNSS/5G tightly coupled fusion positioning in urban occluded environments with a smartphone	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
A new method for fault identification in real-time integrity monitoring of autonomous vehicles positioning using PPP-RTK	11
A method to assess the quality of GNSS satellite phase bias products	11
Fast determination of geometric matrix in ionosphere tomographic inversion with unevenly spaced curvilinear voxels	11
Velocity estimation method for high-spinning vehicle based on a side-mounted single patch antenna	11
A weighted mean temperature model using principal component analysis for Greenland	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
Interactive multiple-model vertical vibration detection of structures based on high-frequency GNSS observations	10
Integrated satellite clock and code/phase bias combination in the third IGS reprocessing campaign	10
Study of ionospheric responses over China during September 7–8, 2017 using GPS, Beidou (GEO), and Swarm satellite observations	10
Phase compression-holding modulation for C-band navigation	10
Construction of a meteorological application system based on BDS ground-based augmentation network and water vapor products validation	10

Characteristics of Beidou-2 flex power and its impact on precise point positioning with ambiguity resolution	10
An INS-assisted vector tracking receiver with multipath error estimation for dense urban canyons	10
Exploring characteristics of BDS-3 PPP-B2b augmentation messages by a three-step analysis procedure	10
An adaptive hybrid blanking algorithm to mitigate the DME pulse interference on BDS B2a receivers	10
DOA tracking using an improved direction lock loop based on a three-element L-shaped array	10
An open-source software package for Precise Point Positioning: raPPPid	10
Sea target detection using the GNSS reflection signals	10
Anomalous ambiguity detection between reference stations based on Box-Cox transformation of tropospheric residual estimation	10
Assessing all-frequency GPS/Galileo/BDS PPP-RTK in GNSS challenging environments	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
Statistical characterization of the signal-in-space errors of the BDS: a comparison between BDS-2 and BDS-3	10
GPS signal acquisition based on deep convolutional neural network and post-correlation methods	10
Simultaneous estimation of inter-frequency clock biases and clock offsets with triple-frequency GPS data: undifferenced and uncombined methodology and impact analysis	10
Quality monitoring of real-time PPP service using isolation forest-based residual anomaly detection	9
Snow depth retrieval using GPS signal-to-noise ratio data based on improved complete ensemble empirical mode decomposition	9
Precise disciplining of a chip-scale atomic clock using PPP with broadcast ephemerides	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
Timekeeping algorithm based on the cooperative covariance matrix of clock differences	9
Facilitated interferometric reflectometry evaluation and its application in monitoring three typhoon storm surges in Hong Kong with multi-GNSS constellation	9
Improving performances of GNSS positioning correction using multiview deep reinforcement learning with sparse representation	9
GHASP: a Galileo HAS parser	9
A design of base-station-aided LEO/GPS joint positioning framework	9
GNSS spoofing detection using a fuzzy classifier based on time–frequency analysis of the autocorrelation function	9
Improving precise point positioning (PPP) performance with best integer equivariant (BIE) estimator	9
Enhancing multi-GNSS positioning performances in harsh environments via a refined joint troposphere-multipath hemispherical map	9
Satellite laser ranging to GNSS-based Swarm orbits with handling of systematic errors	9
Development of a GNSS-IR instrument based on low-cost positioning chips and its performance evaluation for estimating the reflector height	9
Maneuver detection and estimation for LEO real-time precise orbit determination with GNSS observations	9
Multi-constellation single-frequency ionospheric-free precise point positioning with low-cost receivers	9
Fast GNSS spoofing detection based on LSTM-detect model	9
GNSS position-aided delay-locked loops for accurate urban navigation	9
GNSS water vapor tomography based on Kalman filter with optimized noise covariance	9
Can the phase of SNR oscillations in GNSS-IR be used to estimate sea-level height?	8
NLOS signal detection and correction for smartphone using convolutional neural network and variational mode decomposition in urban environment	8
A DIA method based on maximum a posteriori estimate for multiple outliers	8
An ambiguity subset selection algorithm based on the variation of check factors for BDS-3/BDS-2/GPS precise point positioning	8
Influence of flooding on GPS carrier-to-noise ratio and water content variation analysis: a case study in Zhengzhou, China	8
Accurate analytical non-gravitational force model for precise orbit determination of QZS-1, 2, and 4	8
Multipath hemispherical map model with geographic cut-off elevation constraints for real-time GNSS monitoring in complex environments	8
Implementation of solution separation-based Kalman filter integrity monitoring against all-source faults for multi-sensor integrated navigation	8
PPP-ARISEN: an open-source precise point positioning software with ambiguity resolution for interdisciplinary research of seismology, geodesy and geodynamics	8
Evaluation of tropospheric estimates from CentipedeRTK, a collaborative network of low-cost GNSS stations	8
GINav: a MATLAB-based software for the data processing and analysis of a GNSS/INS integrated navigation system	8
Analysis of preliminary results from distributed autonomous timekeeping on Beidou-3 satellites	8
Enhancing sea level inversion accuracy with a novel phase-based error correction method and multi-GNSS combination approach	8
An enhanced positioning algorithm module for low-cost GNSS/MEMS integration based on matching straight lane lines in HD maps	8
Can we measure sea surface wind speed with a smartphone?	8
Real-time multipath mitigation based on spatiotemporal correlations in BDS precise point positioning	8
Innovation-based Kalman filter fault detection and exclusion method against all-source faults for tightly coupled GNSS/INS/Vision integration	8
Precise orbit determination of LEO satellites: a systematic review	8
Vector angle grouping-based solution separation for multipath/NLOS detection and exclusion with the enhancement of doppler test	8
Three-dimensional ionospheric tomography based on compressed sensing	8
PPP ambiguity resolution based on factor graph optimization	8
Improved forward and backward adaptive smoothing algorithm	8
A real-time ZTD model in China using ERA5 and GNSS based on empirical orthogonal function method	7
New time-differenced carrier phase approach to GNSS/INS integration	7
Estimating ionospheric power spectral density for long-range RTK positioning using uncombined observations	7
Real-time cloud computing of GNSS measurements from smartphones and mobile devices for enhanced positioning and navigation	7
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	7
Long-term performance analysis of BDS-3 precise point positioning (PPP-B2b) service	7
Automatic correction of barometric altimeters using additional air temperature and humidity measurements	7
An advanced regional integrated water vapor estimation model utilizing least squares support vector machine for the upper Rhine graben region	7
Correcting antenna phase center effects to reconcile the code/phase bias products from the third IGS reprocessing campaign	7
A GNSS interference source tracking method using the continuous-discrete Gaussian kernel quadrature Kalman filter	7
Efficient chip-shape correlator implementation on a GPU-based real-time GNSS SDR receiver	7
Reduction research on performance index system of satellite navigation system spoofing	7
Feature-based GNSS positioning error consistency optimization for GNSS/INS integrated system	7
Aligning the Galileo code biases on the pilot and mixed signal channels to improve precise point positioning	7
Robust unambiguous ranging technique for BDS-3 B1 wideband composite signals	7
Spatiotemporal accuracy evaluation and errors analysis of global VTEC maps using a simulation technique	7
LEO Doppler-aided GNSS position estimation	7
Comparison and evaluation of carrier phase PPP and single difference time transfer with multi-GNSS ambiguity resolution	7
A refined zenith tropospheric delay model for Mainland China based on the global pressure and temperature 3 (GPT3) model and random forest	7
A data-driven troposphere ZTD modeling method considering the distance of GNSS CORS to the coast	7
A multi-frequency GPS and NavIC reflectometry receiver using commercially off-the-shelf SDR	7
Analysis of factors influencing significant wave height retrieval and performance improvement in spaceborne GNSS-R	7
Multi-GNSS PPP solutions with different handling of system-specific receiver clock parameters and inter-system biases	7
Regional ionospheric correction generation for GNSS PPP-RTK: theoretical analyses and a new interpolation method	7
Assessment of Galileo High Accuracy Service (HAS) test signals and preliminary positioning performance	7
Global single-epoch narrow-lane ambiguity resolution with multi-constellation and multi-frequency precise point positioning	7
A low-cost integrated navigation system based on factor graph nonlinear optimization for autonomous flight	7
Investigating temporal and spatial patterns in the stochastic component of ZTD time series over Europe	7
GLONASS-K2 signal analysis	7
A new IMU-aided multiple GNSS fault detection and exclusion algorithm for integrated navigation in urban environments	7
Multichannel PredRNN: a storm-time TEC map forecasting model using both temporal and spatial memories	7
Low-degree gravity field coefficients based on inverse GNSS method: insights into hydrological and ice mass change studies	7
Development of a hybrid tomography model based on principal component analysis of the atmospheric dynamics and GPS tracking data	7
Distinguishing ionospheric scintillation from multipath in GNSS signals using geodetic receivers	7
A two-antenna GNSS approach to determine soil moisture content and vegetation growth status	7
An improved NeQuick-G global ionospheric TEC model with a machine learning approach	7
Performance assessment of the signal-in-space ranging errors of BDS-3: statistical characterization and integrity standard	6
Effects of different feature representations on global ionospheric TEC model based on spatiotemporal convolutions	6
Forecasting of global ionospheric TEC using a deep learning approach	6
New data processing methods for network RTK positioning: improving ionospheric uncertainty management during ionospheric scintillations	6