01015nam a2200205Ia 4500 CTU_134014 210402s9999 xx 000 0 und d 742000 621.382 F873 Frenzel, Louis E. Principles of electronic communication systems Louis E. Frenzel Boston, [Mass.] McGraw-Hill Higher Education 2008 Developed by well-known electronics author Louis Frenzel, Principles of Electronic Communication Systems offers the most up-to-date coverage of the rapidly changing communications field. Appropriate for use in a one- or two-semester course, this text offers everything needed to prepare students to work in the increasingly complex communications industry of the 21st century. Electronic systems,Digital communications,Hệ thống điện tử,Thông tin số Trọng Hải Trung tâm Học liệu Trường Đại học Cần Thơ