José A López-Salcedo Editor

Kai Borre was professor of geodesy and founder of the Danish GPS Center at Aalborg University. He was the co-author of several popular books and creator of widely used software within his field. Kai Borre received The Order of Dannebrog and held an honorary Doctorate at Vilnius Technical University. Ignacio Fernández-Hernández works at the European Commission, DG DEFIS, as responsible for Galileo authentication and high accuracy services. He is also an adjunct professor at KU Leuven, where he teaches satellite navigation, and has been a visiting scholar at Stanford University. He is the recipient of the Institute of Navigation's 2021 Thurlow Award. José A. López-Salcedo is a professor of electrical engineering at Universitat Autònoma de Barcelona. He has been the technical lead for more than 20 research projects on signal processing techniques for GNSS receivers and a visiting researcher at the University of Illinois Urbana-Champaign, the University of California, Irvine and the European Commission. M. Zahidul H. Bhuiyan is a research professor at the Department of Navigation and Positioning at the Finnish Geospatial Research Institute (FGI). He has more than 15 years of experience in the GNSS field with expertise in multi-frequency multi-GNSS receiver development. He is actively involved in teaching GNSS related courses in Finnish universities and other international training schools. He has also been working as a technical expert for the EU Agency for the Space Programme (EUSPA) in H2020 project reviewing and proposal evaluation since 2017.