@article{bb135000,
        AUTHOR = "Manosas Caballu, M. and Seco Granados, G.",
        TITLE = "Alternative Implementations of the GNSS Power-Based Capon Beamformer",
        JOURNAL = SPLetters,
        VOLUME = "28",
        YEAR = "2021",
        PAGES = "1435-1439",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131014"}

@inproceedings{bb135001,
        AUTHOR = "Tseng, W.K. and Schoellig, A.P. and Barfoot, T.D.",
        TITLE = "Self-Calibration of the Offset Between GPS and Semantic Map Frames
for Robust Localization",
        BOOKTITLE = CRV21,
        YEAR = "2021",
        PAGES = "173-180",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131015"}

@article{bb135002,
        AUTHOR = "Liu, C. and Cao, Y. and Zhang, G. and Gao, W. and Chen, Y. and Lu, J. and Liu, C. and Zhao, H.T. and Li, F.",
        TITLE = "Design and Performance Analysis of BDS-3 Integrity Concept",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131016"}

@article{bb135003,
        AUTHOR = "Li, X.X. and Zhang, H.M. and Zhang, K. and Yuan, Y.Q. and Zhang, W. and Qin, Y.",
        TITLE = "Earth Rotation Parameters Estimation Using GPS and SLR Measurements
to Multiple LEO Satellites",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131017"}

@article{bb135004,
        AUTHOR = "Castro Arvizu, J.M. and Medina, D. and Ziebold, R. and Vila Valls, J. and Chaumette, E. and Closas, P.",
        TITLE = "Precision-Aided Partial Ambiguity Resolution Scheme for Instantaneous
RTK Positioning",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131018"}

@article{bb135005,
        AUTHOR = "Zou, X. and Li, Z. and Wang, Y. and Deng, C. and Li, Y.Y. and Tang, W.M. and Fu, R. and Cui, J.H. and Liu, J.",
        TITLE = "Multipath Error Fusion Modeling Methods for Multi-GNSS",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131019"}

@article{bb135006,
        AUTHOR = "Xu, W. and Shen, W.B. and Cai, C.H. and Li, L.H. and Wang, L. and Shen, Z.Y.",
        TITLE = "Modeling and Performance Evaluation of Precise Positioning and
Time-Frequency Transfer with Galileo Five-Frequency Observations",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131020"}

@article{bb135007,
        AUTHOR = "Yang, S.F. and Zhang, Q.Y. and Zhang, X. and Liu, D.",
        TITLE = "Impact of GPS/BDS Satellite Attitude Quaternions on Precise Point
Positioning with Ambiguity Resolution",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131021"}

@article{bb135008,
        AUTHOR = "Luo, X.W. and Wang, D. and Wang, J.L. and Wu, Z. and Gao, J.Y. and Zhang, T. and Yang, C.G. and Qin, X.M. and Chen, X.",
        TITLE = "Study of the Spatiotemporal Characteristics of the Equatorial
Ionization Anomaly Using Shipborne Multi-GNSS Data: A Case Analysis
(120-150E, Western Pacific Ocean, 2014-2015)",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "15",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131022"}

@article{bb135009,
        AUTHOR = "Zhao, W.H. and Liu, G. and Wang, S. and Gao, M. and Lv, D.",
        TITLE = "Real-Time Estimation of GPS-BDS Inter-System Biases:
An Improved Particle Swarm Optimization Algorithm",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "16",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131023"}

@article{bb135010,
        AUTHOR = "Zhang, P.F. and Tu, R. and Gao, Y.P. and Hong, J. and Han, J.Q. and Lu, X.C.",
        TITLE = "Comparison of Multi-GNSS Time and Frequency Transfer Performance
Using Overlap-Frequency Observations",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "16",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131024"}

@article{bb135011,
        AUTHOR = "Wang, J. and Jiang, W.P. and Li, Z. and Lu, Y.",
        TITLE = "A New Multi-Scale Sliding Window LSTM Framework (MSSW-LSTM):
A Case Study for GNSS Time-Series Prediction",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "16",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131025"}

@article{bb135012,
        AUTHOR = "Chen, C. and Xiao, G.R. and Chang, G.B. and Xu, T.H. and Yang, L.",
        TITLE = "Assessment of GPS/Galileo/BDS Precise Point Positioning with
Ambiguity Resolution Using Products from Different Analysis Centers",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "16",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131026"}

@article{bb135013,
        AUTHOR = "Psychas, D. and Teunissen, P.J.G. and Verhagen, S.",
        TITLE = "A Multi-Frequency Galileo PPP-RTK Convergence Analysis with an
Emphasis on the Role of Frequency Spacing",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "16",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131027"}

@article{bb135014,
        AUTHOR = "Ren, Y.Y. and Lian, L. and Wang, J.",
        TITLE = "Analysis of Seismic Deformation from Global Three-Decade GNSS
Displacements: Implications for a Three-Dimensional Earth GNSS
Velocity Field",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "17",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131028"}

@article{bb135015,
        AUTHOR = "Li, W. and Zhu, S. and Ming, Z.",
        TITLE = "Estimation of Inter-System Biases between BDS-3/GPS/Galileo and Its
Application in RTK Positioning",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "17",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131029"}

@article{bb135016,
        AUTHOR = "Nistor, S. and Suba, N.S. and El Mowafy, A. and Apollo, M. and Malkin, Z. and Nastase, E.I. and Kudrys, J. and Maciuk, K.",
        TITLE = "Implication between Geophysical Events and the Variation of Seasonal
Signal Determined in GNSS Position Time Series",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "17",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131030"}

@article{bb135017,
        AUTHOR = "Hammond, M.L. and Foti, G. and Gommenginger, C. and Srokosz, M.",
        TITLE = "An Assessment of CyGNSS v3.0 Level 1 Observables over the Ocean",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "17",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131031"}

@article{bb135018,
        AUTHOR = "Balodis, J. and Normand, M. and Varna, I.",
        TITLE = "Extreme Solar Events' Impact on GPS Positioning Results",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "18",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131032"}

@article{bb135019,
        AUTHOR = "Ding, W. and Sun, W. and Gao, Y. and Wu, J.",
        TITLE = "Carrier Phase-Based Precise Heading and Pitch Estimation Using a
Low-Cost GNSS Receiver",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "18",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131033"}

@article{bb135020,
        AUTHOR = "Cui, H. and Zhang, S.",
        TITLE = "Satellite Availability and Service Performance Evaluation for
Next-Generation GNSS, RNSS and LEO Augmentation Constellation",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "18",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131034"}

@article{bb135021,
        AUTHOR = "Naciri, N. and Bisnath, S.I.",
        TITLE = "Approaching Global Instantaneous Precise Positioning with the Dual-
and Triple-Frequency Multi-GNSS Decoupled Clock Model",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "18",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131035"}

@article{bb135022,
        AUTHOR = "Gao, W. and Zhao, Q. and Meng, X.L. and Pan, S.",
        TITLE = "Performance of Single-Epoch EWL/WL/NL Ambiguity-Fixed Precise Point
Positioning with Regional Atmosphere Modelling",
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        YEAR = "2021",
        NUMBER = "18",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131036"}

@article{bb135023,
        AUTHOR = "Seyyedmahalleh, B.A. and Saberali, S.M. and Parvaresh, F. and Majidi, M.",
        TITLE = "ECF-Based Estimator for the LOS Power in Uplink NOMA System With
Unknown Impulsive Noise",
        JOURNAL = SPLetters,
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        YEAR = "2021",
        PAGES = "1868-1872",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131037"}

@article{bb135024,
        AUTHOR = "Ji, G.H. and Kwon, K.H. and Won, J.H.",
        TITLE = "GNSS Signal Availability Analysis in SSV for Geostationary Satellites
Utilizing multi-GNSS with First Side Lobe Signal over the Korean
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        JOURNAL = RS,
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        YEAR = "2021",
        NUMBER = "19",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131038"}

@article{bb135025,
        AUTHOR = "Crocetti, L. and Schartner, M. and Soja, B.",
        TITLE = "Discontinuity Detection in GNSS Station Coordinate Time Series Using
Machine Learning",
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        NUMBER = "19",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131039"}

@article{bb135026,
        AUTHOR = "Zhang, C.L. and Dong, D. and Chen, W. and Cai, M.M. and Peng, Y. and Yu, C. and Wu, J.P.",
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Observables Based on Multi-Antenna GNSS Receiver with a Common Clock",
        JOURNAL = RS,
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        NUMBER = "19",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131040"}

@article{bb135027,
        AUTHOR = "Zhang, W. and Huo, X. and Yuan, Y. and Li, Z. and Wang, N.",
        TITLE = "Algorithm Research Using GNSS-TEC Data to Calibrate TEC Calculated by
the IRI-2016 Model over China",
        JOURNAL = RS,
        VOLUME = "13",
        YEAR = "2021",
        NUMBER = "19",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131041"}

@article{bb135028,
        AUTHOR = "Wang, G.X. and Yin, Z.H. and Hu, Z.G. and Chen, G. and Li, W. and Bo, Y.D.",
        TITLE = "Analysis of the BDGIM Performance in BDS Single Point Positioning",
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        NUMBER = "19",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131042"}

@article{bb135029,
        AUTHOR = "Li, X.P. and Pan, L.",
        TITLE = "Precise Point Positioning with Almost Fully Deployed BDS-3, BDS-2,
GPS, GLONASS, Galileo and QZSS Using Precise Products from Different
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        YEAR = "2021",
        NUMBER = "19",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131043"}

@article{bb135030,
        AUTHOR = "Ma, X.J. and Liu, B. and Dai, W. and Kuang, C. and Xing, X.M.",
        TITLE = "Potential Contributors to Common Mode Error in Array GPS Displacement
Fields in Taiwan Island",
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        NUMBER = "21",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131044"}

@article{bb135031,
        AUTHOR = "He, Y.Q. and Xu, T. and Gao, F. and Wang, N. and Meng, X.Y. and Ning, B.",
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Code-Level Altimetry Using L5 Signals from QZSS GEO",
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        NUMBER = "22",
        PAGES = "xx-yy",
        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131045"}

@article{bb135032,
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        TITLE = "Raytracing Simulated GPS Radio Wave Propagation Paths Experiencing
Large Disturbances When Going through the Top of the Sub-Cloud Layer",
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        NUMBER = "22",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131046"}

@article{bb135033,
        AUTHOR = "Tong, W.H. and Zou, D. and Han, T. and Zhang, X.Z. and Shen, P. and Lu, X.C. and Wang, P. and Yin, T.",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131047"}

@article{bb135034,
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        TITLE = "A Loading Correction Model for GPS Measurements Derived from
Multiple-Data Combined Monthly Gravity",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131048"}

@article{bb135035,
        AUTHOR = "Wu, X. and Guo, P. and Sun, Y. and Liang, H. and Zhang, X.G. and Bai, W.H.",
        TITLE = "Recent Progress on Vegetation Remote Sensing Using Spaceborne
GNSS-Reflectometry",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131049"}

@article{bb135036,
        AUTHOR = "Susi, M. and Borio, D. and Gioia, C. and Brunes, M.T. and Dahnn, M. and Grinde, G. and Rost, C.",
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Latitudes: A Norwegian Vessel Case Study",
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@article{bb135037,
        AUTHOR = "Specht, M.",
        TITLE = "Determination of Navigation System Positioning Accuracy Using the
Reliability Method Based on Real Measurements",
        JOURNAL = RS,
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131051"}

@article{bb135038,
        AUTHOR = "He, X.X. and Bos, M.S. and Montillet, J.P. and Fernandes, R. and Melbourne, T. and Jiang, W.P. and Li, W.",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131052"}

@article{bb135039,
        AUTHOR = "Wu, M. and Luo, S. and Wang, W. and Liu, W.",
        TITLE = "Performance Assessment of BDS-2/BDS-3/GPS/Galileo Attitude
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        NUMBER = "23",
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131053"}

@article{bb135040,
        AUTHOR = "Guo, J. and Zhang, Q.Y. and Li, G.C. and Zhang, K.",
        TITLE = "Assessment of Multi-Frequency PPP Ambiguity Resolution Using Galileo
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        BIBSOURCE = "http://www.visionbib.com/bibliography/active682gps1.html#TT131054"}

@article{bb135041,
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@article{bb135042,
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@article{bb135043,
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Scintillations of the Carrier Phase of GNSS Signals",
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@article{bb135044,
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@article{bb135045,
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@article{bb135046,
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@article{bb135047,
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@article{bb135048,
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@article{bb135049,
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@article{bb135050,
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