Todd E. Humphreys

Papers

Total Citations

H-Index

About

Todd E. Humphreys is a leading researcher in navigation, positioning, and autonomous systems, best known for his pioneering work on the security and robustness of Global Navigation Satellite Systems (GNSS). His major contributions span the detection and mitigation of GPS spoofing and jamming, the development of resilient navigation architectures for autonomous vehicles, and the advancement of high-accuracy positioning techniques. Humphreys has demonstrated the vulnerability of critical infrastructure—including aviation, maritime, and power grids—to GPS attacks, and his research has directly influenced policy and system design for secure navigation. His work is highly impactful, with several papers accumulating thousands of citations, reflecting its foundational role in the field. Notably, he led the first public demonstration of a GPS spoofing attack on a civilian drone, which garnered widespread attention and spurred new security standards. More recently, his group has pushed into multi-modal simultaneous localization and mapping (SLAM), as seen in their 2024 paper "MM3DGS SLAM," which introduces 3D Gaussian splatting for photorealistic, real-time scene reconstruction. Humphreys is a professor at the University of Texas at Austin, where his research continues to shape the future of safe and secure autonomous navigation.