GNSS | Intelligent Computational Geodesy and PNT (ICG-PNT) Labhttps://www.icg-pnt.com/tag/gnss/GNSSHugo Blox Builder (https://hugoblox.com)en-usSun, 01 Feb 2026 00:00:00 +0000https://www.icg-pnt.com/media/logo_hu_b8f6397eac57b83.pngGNSShttps://www.icg-pnt.com/tag/gnss/Fast and precise GNSS RTK positioning with ionosphere-constrained weighted least squares quadratic programminghttps://www.icg-pnt.com/publication/fast-precise-gnss-rtk-ionosphere-constrained-qp/Sun, 01 Feb 2026 00:00:00 +0000https://www.icg-pnt.com/publication/fast-precise-gnss-rtk-ionosphere-constrained-qp/Improving GNSS precise point positioning with tropospheric constraints from data-driven numerical weather prediction modelhttps://www.icg-pnt.com/publication/gnss-ppp-tropospheric-constraints-nwp/Fri, 02 Jan 2026 00:00:00 +0000https://www.icg-pnt.com/publication/gnss-ppp-tropospheric-constraints-nwp/Effect of Constraining a Limited Number of Slant Ionospheric Corrections in PPP and an Improved Partial Tight-Constraining Algorithmhttps://www.icg-pnt.com/publication/partial-tight-constraining-slant-ionosphere-ppp/Thu, 01 Jan 2026 00:00:00 +0000https://www.icg-pnt.com/publication/partial-tight-constraining-slant-ionosphere-ppp/GNSS Positioning Aided with Pedestrian Dead Reckoning (PDR) in Urban Areashttps://www.icg-pnt.com/publication/gnss-positioning-aided-pdr-urban/Thu, 01 Jan 2026 00:00:00 +0000https://www.icg-pnt.com/publication/gnss-positioning-aided-pdr-urban/Bridging missing GNSS phase measurements through cycle slip detection for improved smartphone positioninghttps://www.icg-pnt.com/publication/bridging-missing-gnss-phase-smartphone/Wed, 01 Oct 2025 00:00:00 +0000https://www.icg-pnt.com/publication/bridging-missing-gnss-phase-smartphone/Multi-constellation instantaneous single difference triple-carrier ambiguity resolution in urban environmentshttps://www.icg-pnt.com/publication/multi-constellation-triple-carrier-urban/Wed, 01 Oct 2025 00:00:00 +0000https://www.icg-pnt.com/publication/multi-constellation-triple-carrier-urban/A Novel Optimized Hybrid VMD-PCA-XGBoost Model for Forecasting Precipitation: Exemplified by the Beijing-Tianjin-Hebei Study Region in Chinahttps://www.icg-pnt.com/publication/hybrid-vmd-pca-xgboost-precipitation/Mon, 07 Jul 2025 00:00:00 +0000https://www.icg-pnt.com/publication/hybrid-vmd-pca-xgboost-precipitation/A Novel Network RTK Technique for Mobile Platforms: Extending High-Precision Positioning to Offshore Environmentshttps://www.icg-pnt.com/publication/network-rtk-offshore/Sun, 01 Jun 2025 00:00:00 +0000https://www.icg-pnt.com/publication/network-rtk-offshore/A new high-precision short-term ionospheric TEC prediction model based on the DBO-BiLSTM algorithm: A case study of Europehttps://www.icg-pnt.com/publication/ionospheric-tec-dbo-bilstm/Thu, 01 May 2025 00:00:00 +0000https://www.icg-pnt.com/publication/ionospheric-tec-dbo-bilstm/Array-Aided GNSS for Precise Determination of Ionospheric and Tropospheric Delays With Integer Ambiguity Resolutionhttps://www.icg-pnt.com/publication/array-aided-gnss-delays/Fri, 18 Apr 2025 00:00:00 +0000https://www.icg-pnt.com/publication/array-aided-gnss-delays/Spatiotemporal inhomogeneity of accuracy degradation in AI weather forecast foundation models: A GNSS perspectivehttps://www.icg-pnt.com/publication/ai-weather-accuracy-degradation-gnss/Fri, 21 Mar 2025 00:00:00 +0000https://www.icg-pnt.com/publication/ai-weather-accuracy-degradation-gnss/Enhancing GNSS Positioning Accuracy in Urban Canyons: A Multi-Epoch Residual-Based Consistency Check and IMU-GNSS Tight Coupling Approachhttps://www.icg-pnt.com/publication/urban-canyon-gnss-imu-consistency-check/Tue, 18 Mar 2025 00:00:00 +0000https://www.icg-pnt.com/publication/urban-canyon-gnss-imu-consistency-check/Multiepoch Grid-Based 3DMA Positioning in Dense Urban Canyons by Optimizing Reflection Modelinghttps://www.icg-pnt.com/publication/multiepoch-3dma-positioning/Tue, 25 Feb 2025 00:00:00 +0000https://www.icg-pnt.com/publication/multiepoch-3dma-positioning/A Combination of Classification Robust Adaptive Kalman Filter with PPP-RTK to Improve Fault Detection for Integrity Monitoring of Autonomous Vehicleshttps://www.icg-pnt.com/publication/classification-robust-adaptive-kalman-ppp-rtk/Wed, 15 Jan 2025 00:00:00 +0000https://www.icg-pnt.com/publication/classification-robust-adaptive-kalman-ppp-rtk/Evaluation and analysis of the precipitable water vapor in Inner Mongolia of Chinahttps://www.icg-pnt.com/publication/inner-mongolia-pwv/Wed, 01 Jan 2025 00:00:00 +0000https://www.icg-pnt.com/publication/inner-mongolia-pwv/Frequency Stability-Aware Stochastic Modeling for Inter-System Bias in Multi-GNSS PPPhttps://www.icg-pnt.com/publication/frequency-stability-aware-isb-ppp/Wed, 01 Jan 2025 00:00:00 +0000https://www.icg-pnt.com/publication/frequency-stability-aware-isb-ppp/Forecasting of Tropospheric Delay Using AI Foundation Models in Support of Microwave Remote Sensinghttps://www.icg-pnt.com/publication/tropospheric-delay-ai-foundation-models/Fri, 01 Nov 2024 00:00:00 +0000https://www.icg-pnt.com/publication/tropospheric-delay-ai-foundation-models/Tightly Coupled Bluetooth Enhanced GNSS/PDR System for Pedestrian Navigation in Dense Urban Environmentshttps://www.icg-pnt.com/publication/bluetooth-enhanced-gnss-pdr/Wed, 16 Oct 2024 00:00:00 +0000https://www.icg-pnt.com/publication/bluetooth-enhanced-gnss-pdr/Model the Ionospheric Gradients Between Satellites in Network RTKhttps://www.icg-pnt.com/publication/ionospheric-gradients-network-rtk/Wed, 09 Oct 2024 00:00:00 +0000https://www.icg-pnt.com/publication/ionospheric-gradients-network-rtk/Adaptive Jamming Mitigation in Single-Antenna Receivers With Spectral Analysis and Switchable Filteringhttps://www.icg-pnt.com/publication/adaptive-jamming-mitigation-single-antenna/Tue, 01 Oct 2024 00:00:00 +0000https://www.icg-pnt.com/publication/adaptive-jamming-mitigation-single-antenna/AI Foundation Models Facilitate Real-time Global GNSS Precipitable Water Vapor Retrieval with Sub-millimeter Accuracyhttps://www.icg-pnt.com/publication/ai-foundation-models-gnss-pwv/Fri, 12 Jul 2024 00:00:00 +0000https://www.icg-pnt.com/publication/ai-foundation-models-gnss-pwv/Equalization of Frequency Domain Adaptive Filter (FDAF) Using Signal Prediction Aided Reference Spectrum Model (SPRSM)https://www.icg-pnt.com/publication/fdaf-equalization-sprsm/Mon, 01 Jan 2024 00:00:00 +0000https://www.icg-pnt.com/publication/fdaf-equalization-sprsm/Absolute and relative POD of LEO satellites in formation flying: Undifferenced and uncombined approachhttps://www.icg-pnt.com/publication/leo-formation-pod-uduc/Fri, 19 May 2023 00:00:00 +0000https://www.icg-pnt.com/publication/leo-formation-pod-uduc/Undifferenced and uncombined GNSS time and frequency transfer with integer ambiguity resolutionhttps://www.icg-pnt.com/publication/gnss-time-frequency-uduc-iar/Mon, 06 Feb 2023 00:00:00 +0000https://www.icg-pnt.com/publication/gnss-time-frequency-uduc-iar/A method of real-time long-baseline time transfer based on the PPP-RTKhttps://www.icg-pnt.com/publication/ppp-rtk-long-baseline-time-transfer/Sun, 01 Jan 2023 00:00:00 +0000https://www.icg-pnt.com/publication/ppp-rtk-long-baseline-time-transfer/On the potential of undifferenced and uncombined GNSS time and frequency transfer with integer ambiguity resolution and satellite clocks estimatedhttps://www.icg-pnt.com/publication/gnss-time-frequency-satellite-clocks/Sun, 01 Jan 2023 00:00:00 +0000https://www.icg-pnt.com/publication/gnss-time-frequency-satellite-clocks/Undifferenced and Uncombined GNSS Time Transfer and its Space Applicationshttps://www.icg-pnt.com/publication/uduc-gnss-time-transfer-space-applications/Sun, 01 Jan 2023 00:00:00 +0000https://www.icg-pnt.com/publication/uduc-gnss-time-transfer-space-applications/Characteristics of the short-term temporal variations of multi-constellation and multi-frequency GNSS receiver differential phase biaseshttps://www.icg-pnt.com/publication/short-term-gnss-receiver-differential-phase-biases/Fri, 01 Oct 2021 00:00:00 +0000https://www.icg-pnt.com/publication/short-term-gnss-receiver-differential-phase-biases/Characteristics of receiver-related biases between BDS-3 and BDS-2 for five frequencies including inter-system biases, differential code biases, and differential phase biaseshttps://www.icg-pnt.com/publication/bds-receiver-related-biases/Wed, 16 Jun 2021 00:00:00 +0000https://www.icg-pnt.com/publication/bds-receiver-related-biases/On the temperature sensitivity of multi-GNSS intra- and inter-system biases and the impact on RTK positioninghttps://www.icg-pnt.com/publication/temperature-sensitivity-gnss-biases-rtk/Mon, 17 Aug 2020 00:00:00 +0000https://www.icg-pnt.com/publication/temperature-sensitivity-gnss-biases-rtk/Characteristics of GPS, BDS2, BDS3 and Galileo inter-system biases and their influence on RTK positioninghttps://www.icg-pnt.com/publication/bds3-gps-galileo-isb-rtk/Wed, 01 Jan 2020 00:00:00 +0000https://www.icg-pnt.com/publication/bds3-gps-galileo-isb-rtk/Initial assessment of single- and dual-frequency BDS-3 RTK positioninghttps://www.icg-pnt.com/publication/bds3-rtk-positioning/Wed, 01 Jan 2020 00:00:00 +0000https://www.icg-pnt.com/publication/bds3-rtk-positioning/Stochastic modeling of between-receiver single-differenced ionospheric delays and its application to medium baseline RTK positioninghttps://www.icg-pnt.com/publication/stochastic-modeling-ionospheric-delays-rtk/Sun, 01 Sep 2019 00:00:00 +0000https://www.icg-pnt.com/publication/stochastic-modeling-ionospheric-delays-rtk/Multi-GNSS inter-system biases: estimability analysis and impact on RTK positioninghttps://www.icg-pnt.com/publication/multi-gnss-inter-system-biases-rtk/Wed, 05 Jun 2019 00:00:00 +0000https://www.icg-pnt.com/publication/multi-gnss-inter-system-biases-rtk/