Peter Teunissen

Teunissen was born in Owerri, Nigeria, on 9 October 1957. He earned his BSc (1978), MSc (1980, cum laude), and PhD (1985, cum laude) in Mathematical and Physical Geodesy from Delft University of Technology. == Academic career ==

Teunissen has held several academic and leadership positions at Delft University of Technology (TU Delft), including Head of the Department of Geodesy, Vice-Dean of the Faculty of Civil Engineering and Geosciences, and Director of Education. He has also served as Distinguished Visiting Chair Professor at Hong Kong Polytechnic University. Teunissen is currently emeritus Professor of Geodesy and Satellite Navigation at TU Delft and Vice-President of the International Association of Geodesy. He was the founding Editor-in-Chief of the Journal of Geodesy and serves on several editorial boards. == Research ==

Teunissen is the originator of the Least-squares AMBiguity Decorrelation Adjustment (LAMBDA) method, a key development in GNSS positioning. His research focuses on satellite navigation, mixed-integer estimation, quality control, and precise positioning with multi-GNSS constellations, including GPS, GLONASS, Galileo, BeiDou, and IRNSS. (with A. Kleusberg) • Adjustment Theory and Testing Theory • Springer Handbook of Global Navigation Satellite Systems (with O. Montenbruck) == Awards and honours ==

Teunissen has received multiple international awards, including: • Vening Meinesz Medal, European Geosciences Union (2022) • Johannes Kepler Award, Institute of Navigation (2019) • Honorary Fellow, International Union of Geodesy and Geophysics (IUGG, 2023) • Fellow, Institute of Navigation (2014) • Fellow, Royal Institute of Navigation (2016) • Honorary Doctorate, Chinese Academy of Sciences (2014) • Alexander von Humboldt Research Award == Selected publications ==

• Teunissen, P.J.G. & Kleusberg, A. (Eds.), GPS for Geodesy, Springer. • Teunissen, P.J.G. & Montenbruck, O. (Eds.), Springer Handbook of Global Navigation Satellite Systems, Springer. • Multiple journal articles on GNSS ambiguity resolution, integer estimation, and geodetic theory. == See also ==