Quality assessment of GNSS observations from an Android N smartphone and positioning performance analysis using time-differenced filtering approach

Xiaohong Zhang, Xianlu Tao, Feng Zhu, +2

GPS Solutions

MeasurementLocation AwarenessGlobal Navigation Satellite SystemPositioning SystemMobile Computing +5

Quality analysis of multi-GNSS raw observations and a velocity-aided positioning approach based on smartphones

Wanke Liu, Xiang Shi, Feng Zhu, +2

Advances in Space Research

EngineeringGlobal Positioning SystemMeasurementCalibrationQuality Analysis +12

New optimal smoothing scheme for improving relative and absolute accuracy of tightly coupled GNSS/SINS integration

Xiaohong Zhang, Feng Zhu, Xianlu Tao, +1

GPS Solutions

Numerical AnalysisEngineeringCalibrationAbsolute AccuracyGnss/sins Integration +4

An enhanced foot-mounted PDR method with adaptive ZUPT and multi-sensors fusion for seamless pedestrian navigation

Xianlu Tao, Feng Zhu, Xin Hu, +2

GPS Solutions

Multi-sensors FusionAutomatic NavigationEngineeringLocation EstimationAdaptive Zupt +8

Smartphone RTK positioning with multi-frequency and multi-constellation raw observations: GPS L1/L5, Galileo E1/E5a, BDS B1I/B1C/B2a

Xianlu Tao, Wanke Liu, Yingzhe Wang, +3

Journal of Geodesy

EngineeringMulti-constellation Raw ObservationsBds B1i/b1c/b2aLocation EstimationLocation Awareness +7

Walker: Continuous and Precise Navigation by Fusing GNSS and MEMS in Smartphone Chipsets for Pedestrians

Feng Zhu, Xianlu Tao, Wanke Liu, +3

Remote Sensing

Location TrackingEngineeringSmartphone ChipsetsLocation EstimationGlobal Navigation Satellite System +17

Precise Displacement Estimation From Time-Differenced Carrier Phase to Improve PDR Performance

Xianlu Tao, Xiaohong Zhang, Feng Zhu, +2

IEEE Sensors Journal

Numerical AnalysisTime-differenced Carrier PhasePedestrian Navigation SystemLocation TrackingEngineering +23

A reliable NLOS error identification method based on LightGBM driven by multiple features of GNSS signals

Xiaohong Zhang, Xinyu Wang, Wanke Liu, +4

Satellite Navigation

Deep Learning Based Vehicle-Mounted Environmental Context Awareness via GNSS Signal

Feng Zhu, Kegan Luo, Xianlu Tao, +1

IEEE Transactions on Intelligent Transportation Systems

POSMind: developing a hierarchical GNSS/SINS post-processing service system for precise position and attitude determination

Feng Zhu, Qinqing Cai, Xianlu Tao, +2

GPS Solutions