Dr. Christopher J. Hegarty
is a director with The MITRE Corporation, where he has worked mainly on aviation applications of GNSS since 1992. He received his D.Sc. in electrical engineering from The George Washington University. He is currently the Chair of the Program Management Committee of RTCA, Inc., and co-chairs RTCA Special Committee 159 (GNSS). He served as editor (1997 -2006) of NAVIGATION: The Journal of the Institute of Navigation and is presently the president of the U.S. Institute of Navigation (ION).
For his contributions to GNSS, he was a recipient of the U.S. Department of State Superior Honor Award in 2005, the ION Kepler Award in 2005, and the Worcester Polytechnic Institute Hobart Newell Award in 2006. He is a Fellow of the ION, and co-editor/co-author of the textbook Understanding GPS: Principles and Applications, 2nd Ed.
Frequencies, Signals, and Signal Processing
This lecture addresses the frequencies and other characteristics of the signals for several current and planned satellite navigation systems (GPS, GLONASS, and GALILEO). The lecture also provides a conceptual overview of GNSS receiver
signal processing, including a description of the basic techniques employed to acquire, track, and demodulate the navigation data from received GNSS signals.