معرفی
Dr. Todd Humphreys is an Assistant Professor in the Department of Aerospace Engineering and Engineering Mechanics at The University of Texas at Austin. He directs the Radionavigation Laboratory, focusing on software-defined GPS receivers and LEO-based positioning systems. His research emphasizes defending against GNSS spoofing/jamming and exploring satellite navigation innovations.
Research interests include satellite navigation, orbital dynamics, and signal processing with applications in ionospheric remote sensing and cybersecurity. He co-founded Coherent Navigation to develop hardened GPS systems using Iridium signals.
Recent work focuses on LEO mega-constellations (Starlink, OneWeb) for resilient PNT solutions, spoofing detection via single/dual-satellite geolocation, and multi-modal fusion for urban navigation (TEXR Dataset).
His publications address OFDM signal design for ranging, radar-inertial positioning, and anti-spoofing countermeasures. Current projects involve beamforming optimization for LEO terminals and TITAN inertial-terrain navigation.
