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In this lecture, Professor Wu Deben first introduced the main characteristics and concepts of information, and briefly introduced the third scientific and technological revolution, leading to telecommunications technology. Then it focuses on introducing the concepts of sinusoidal signals, analog signals and digital signals and their characteristics, formulas, theorems, etc., and also explains digital transmission technology. It is designed to give students a comprehensive grasp of some basic concepts of modern telecommunications technology.
Chapters
Chapter 1：1 (19 minutes and 21 seconds)
Chapter 2：2 (18 minutes and 36 seconds)
Chapter 3：3 (18 minutes and 50 seconds)
Chapter 4：4 (19 minutes and 0 seconds)
Chapter 5：5 (20 minutes and 54 seconds)
Chapter 6：6 (19 minutes and 0 seconds)
Chapter 7：7 (19 minutes and 54 seconds)
Chapter 8：8 (6 minutes and 17 seconds)
Chapter 9：9 (22 minutes and 24 seconds)
Chapter 10：10 (20 minutes and 37 seconds)
Chapter 11：11 (23 minutes and 15 seconds)
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