Temporal Variation of Loran ASFs and their Effects on HEA Navigation

Dr. Gregory Johnson is a Senior Program Manager at Alion Science & Technology. He heads up the New London, CT office which provides research and engineering support to the U. S. Coast Guard Academy and R&D Center. Recently, he has been working on projects in Loran, DGPS, and WAAS. Dr. Johnson has a BS in Electrical Engineering from the USCG Academy (1987), an MS in Electrical Engineering from Northeastern University (1993), and a PhD in Electrical Engineering from the University of Rhode Island (2005). He has over 18 years of experience in electrical engineering R&D, focusing on communications, signal processing, and electronic navigation and has published over 50 technical papers. Dr. Johnson is a member of the Institute of Navigation, the International Loran Association, the Institute of Electrical and Electronics Engineers, and the Armed Forces Communications Electronics Association. He is also a Commander in the Coast Guard Reserves.