TY - BOOK AU - Couch,Leon W. TI - Digital and analog communication systems SN - 0131424920 AV - TK5101 .C69 2007 U1 - 621.382 22 PY - 2007/// CY - Upper Saddle River, N.J. PB - Pearson/Prentice Hall KW - Telecommunication systems KW - Digital communications N1 - Includes bibliographical references (p. 710-722) and index ER -