HERBERT L. HIRSCH began his career at Systems Research Laboratories (now part of Veridian Corporation) in Dayton, Ohio, and rose to the position of Senior Engineer. Mr. Hirsch has also served as an Engineering Group Leader for Quest Research Corporation, Director of Systems Engineering for Applications Research Corporation, Director of Engineering for Defense Technology, Inc., and Chief Engineer for MTL Systems, Inc. He has also authored and coauthored books on radar antenna simulation, statistical signal processing, hardware description languages, and electronic countermeasures. Mr. Hirsch currently operates his consulting business, Hirsch Engineering and Communications, Inc., from his home in Vandalia, Ohio.