Lionel Ries has been a navigation expert in the Transmission Technique and signal processing (TT) Department at CNES since June 2000, where he coordinates navigation technical activities. He is responsible for research activities on GNSS2 signals, ground and spaceborne receivers, payloads, and systems.
He contributed to the invention of the CBOC signal. He provided support to the 2004 US-EU agreement on GPS and Galileo. He was responiable for the development of the L1-L2C signal processing algorithms now implemented in the ASIC and processor of the TOPSTAR 3000 receiver, in the frame of a CNES R&D activity.
He graduated from the Ecole Polytechnique de Bruxelles, at Brussels Free University, and received an M.S. degree from the Ecole Nationale Superieure de l’Aeronautique et de l’Espace (Supaero ) in Toulouse.