[Eecs_phd] EECS Research Seminar Talk with EE Interview Candidate Dr. Yang Wang-Remote Sensing of Earth and the Near-Earth Environment Using GNSS Signals from SmallSats

[Hunter, Tiffany]

RESEARCH PRESENTATION
Remote Sensing of Earth and the Near-Earth Environment Using GNSS Signals from SmallSats
Continuous monitoring of the Earth and near-Earth environment poses significant challenges but is increasingly vital as climate change intensifies extreme weather events and society becomes more reliant on space-based infrastructure, communication, and power systems, all of which can be vulnerable to disruption from severe space weather. With recent advancements in small satellite (SmallSat) technologies, GNSS/signals-of-opportunity (SoOp) measurements onboard SmallSats present a promising means for cost-efficient, global-scale, and high-temporal-resolution observation of the Earth and near-Earth environment, benefiting from their passive nature, the abundance of radio sources, and the diversity of radio frequencies and geometries.
Over relatively smooth Earth surfaces, GNSS signals can be coherently reflected with sufficient energy to estimate the carrier phase, a highly precise ranging measurement. This presentation will review our research using coherently reflected GNSS signals received by low Earth orbit (LEO) SmallSats to retrieve the ionospheric total electron content (TEC), water vapor content in the lower atmosphere, and river surface slope, as well as to precisely map Earth's inland water and ice surface elevations. It will also highlight their unique strengths and potential to enhance and complement existing observation systems. In closing, this presentation will discuss the plans and speculative concepts for future research.

BIOGRAPHY
Yang Wang is a visiting faculty member in the Ann and H. J. Smead Aerospace Engineering Sciences Department at the University of Colorado Boulder, where he earned his Ph.D. in 2021. His research focuses on [A person wearing glasses and a white shirt  Description automatically generated] developing advanced GNSS receiver signal processing algorithms and using spaceborne GNSS measurements for remote sensing applications, including the Earth's ionosphere, atmosphere, and surface. Yang is a recipient of the NASA Heliophysics Early Career Investigator Award, the Institution of Navigation's Bradford Parkinson Award, a Lockheed Martin endowed fellowship, and the Outstanding Graduate Student in Research Award in the Aerospace Engineering Sciences Department at the University of Colorado Boulder.
Yang also holds an M.E. in Electrical and Electronics Engineering from the Nanyang Technological University (2016) in Singapore and a B.E. in Electronic and Information Engineering from Beihang University (2013) in China.













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