Carlson, A. Bruce. Communication systems: an introduction to signals and noise in electrical communication / Carlson, A. Bruce., Crilly, Paul B. and Janet C.Rutledge. - 4th ed. - New York Mc Graw Hill company 2002 - xiii, 850 p. ISBN: 0070111278 Subjects--Topical Terms: Signal theoryModulationsDigital communication Dewey Class. No.: 621.38223 / CAR