Dr. Gunter Heinrichs received a Dipl.-Ing. degree in Communications Engineering from the University of Applied Science Aachen in 1988, a Dipl.-Ing. degree in Data Processing Engineering and a Dr.-Ing. degree in Electrical Engineering from the University Paderborn in 1991 and 1995, respectively. In 1996 he joined the Satellite Navigation department of MAN Technologie AG in Augsburg, Germany, where he was responsible for system architectures and design, and digital signal and data processing of satellite navigation receiver systems. From 1999 to April 2002 he has served as the head and R&D manager of MAN Technologie’s satellite navigation department. In May 2002 he joined IFEN GmbH, Poing, Germany, where he is currently the head of business development and R&D management.