Sebastien Guillaume received the Dipl. Ing. degree in geomatics and the Ph.D. degree from ETH Zürich, Zürich, Switzerland, in 2007 and 2015, respectively. His Ph.D. dissertation focused on the determination of the gravity field for the alignment of particle accelerators with CERN, Geneva, Switzerland. He is currently an Associate Professor of Geodesy and Navigation with HEIG-VD, Yverdon-les-Bains, Switzerland. His research interests include geodesy, positioning, navigation, global navigation satellite systems, and virtual reality.