Jean-Michel Friedt, PhD, is Associate Professor at the University of Franche-Comté, as well as a researcher with the Time and Frequency Department, FEMTO-ST, Besancon, France. He has previously worked as a Systems Engineer for the company SENSeOR, developing wireless passive cooperative targets probed by short-range radar systems. Hervé Boeglen, PhD, is Associate Professor at the University of Poitiers and a member of the XLIM Laboratory, Futuroscope site, France. He has extensive teaching and research experience in digital communications, software-defined radio, embedded systems and related subjects.