Sébastien Changey is a scientist at French and German Research Institut of Saint-Louis (ISL). He is the head of the Guidance, Navigation and Control team (GNC). His research interests are in the algorithms used for guided projectiles and cooperation between projectiles and UAV/UGV. In the past, his research activity was focused on the Navigation of projectiles in GNSS denied environment. Dr. Changey contributes to cooperation with industry and with universities. He is also involved in European cooperation at the European Defence Agency (EDA). Dr. Changey is graduated from Télécom Physique Strasbourg in 2002, and obtained his Ph.D. in Automatic Control and Signal Processing at CentraleSupélec - Université Paris-Saclay in 2005. He obtained his HDR in 2021 at Université de Haute-Alsace.