Principal Investigator
Principal Investigator
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Dr. Jian Yao
Dr. Jian Yao
Associate Professor, Saint Louis University
Associate Professor, Saint Louis University
Email: jian.yao@slu.edu
Email: jian.yao@slu.edu
Biography: Dr. Jian Yao is an associate professor at Saint Louis University, leading a team on Positioning, Navigation, and Timing (PNT) and its applications in science & engineering. Prior to this, he worked as a scientist at the University Corporation for Atmospheric Research (UCAR), the U.S. National Institute of Standards and Technology (NIST), and NOAA's National Geodetic Survey, for many years. He also taught GNSS courses and supervised students at Colorado State University as an adjunct faculty member. He has published around 40 papers covering a variety of topics on PNT, such as GNSS satellite ephemeris, GNSS data processing, precise orbit determination, GNSS time transfer, and atomic-clock timing systems. He is a member of the editorial board of GPS Solutions and IOP Measurement Science and Technology. He has also served as Guest Editor for GPS Solutions and as Session Chair for several PNT meetings. In 2014, he received a Ph.D. degree in Physics from the University of Colorado at Boulder. He is a U.S. Citizen.
Biography: Dr. Jian Yao is an associate professor at Saint Louis University, leading a team on Positioning, Navigation, and Timing (PNT) and its applications in science & engineering. Prior to this, he worked as a scientist at the University Corporation for Atmospheric Research (UCAR), the U.S. National Institute of Standards and Technology (NIST), and NOAA's National Geodetic Survey, for many years. He also taught GNSS courses and supervised students at Colorado State University as an adjunct faculty member. He has published around 40 papers covering a variety of topics on PNT, such as GNSS satellite ephemeris, GNSS data processing, precise orbit determination, GNSS time transfer, and atomic-clock timing systems. He is a member of the editorial board of GPS Solutions and IOP Measurement Science and Technology. He has also served as Guest Editor for GPS Solutions and as Session Chair for several PNT meetings. In 2014, he received a Ph.D. degree in Physics from the University of Colorado at Boulder. He is a U.S. Citizen.
Current Members
Current Members
Jace Smuszkiewicz
Jace Smuszkiewicz
Undergraduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Undergraduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Project: Establishing a GNSS station at SLU
Project: Establishing a GNSS station at SLU
Joined in November 2024.
Joined in November 2024.
Lacey Luscri
Lacey Luscri
Graduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Graduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Project: Study of Coseismic Ionospheric Disturbances
Project: Study of Coseismic Ionospheric Disturbances
Joined in February 2025.
Joined in February 2025.
Faisal (Aduko) Wahabu
Faisal (Aduko) Wahabu
Graduate Student, Department of Electrical and Computer Engineering (ECE), Saint Louis University
Graduate Student, Department of Electrical and Computer Engineering (ECE), Saint Louis University
Project: Operation and analysis of LEO satellite orbit determination
Project: Operation and analysis of LEO satellite orbit determination
Joined in March 2025.
Joined in March 2025.
Md Ahasan Habib
Md Ahasan Habib
PhD Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
PhD Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Project: GNSS Orbit and Clock Processing
Project: GNSS Orbit and Clock Processing
Joined in June 2025.
Joined in June 2025.
Carlos Rivera
Carlos Rivera
Graduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Graduate Student, Department of Earth, Environmental and Geospatial Science (EEGS), Saint Louis University
Project: Exploration of Novel Architectures for GPS Monitor System
Project: Exploration of Novel Architectures for GPS Monitor System
Joined in September 2025.
Joined in September 2025.
Past Members
Past Members
Yao-Chun Ko
Yao-Chun Ko
M.S., Colorado State University
M.S., Colorado State University
Thesis: High-Rate GNSS Satellite Clock Estimation: Implications for Radio Occultation Bending Angle Precision
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