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Unit 1 ¿Æ¼¼Ó¢Óï»ù´¡ÖªÊ¶£¨Ò»£© 1 1.1 ¿Æ¼¼Ó¢ÓïµÄÌصã 1 1.2 ´Ê»ã 3 1.3 ÐéÄâÓïÆø 6 1.4 ·­ÒëµÄ¼¼ÇÉ 7 Unit 2 ¿Æ¼¼Ó¢Óï»ù´¡ÖªÊ¶£¨¶þ£© 10 2.1 ¹ØÓÚÊýÁ¿(Numbers and Quantities) 10 2.2 Êýѧ·ûºÅÓëÊýѧʽ(Mathematic Symbols and Expressions) 11 2.3 ³£ÓÃǰ׺ºÍºó׺ 13 Unit 3 ¿Æ¼¼Ó¢Óïд×÷»ù´¡ 20 3.1 ÂÛÎıêÌâµÄд×÷ 20 3.2 ÂÛÎÄÕªÒªµÄд×÷¼°³£ÓþäÐÍ 20 3.3 ÂÛÎÄÕªÒªµÄ³£ÓþäÐÍ 20 3.4 Àý×Ó 21 3.5 ÊéÐÅ(×Ô¼öÐÅ)µÄд×÷ 21 Unit 4 Ó¢Óïд×÷Ò»°ã֪ʶ¼ò½é 29 4.1 ¿Æ¼¼ÂÛÎĵÄ×é³É²¿·Ö 29 4.2 ¿Æ¼¼ÂÛÎļ°ÆäÕªÒªµÄд×÷×¢ÒâÊÂÏî 32 Unit 5 Electrical Technique 40 Passage A Analog Circuit 40 Passage B Binary System and Logic Systems 46 Passage C Magnitude Locked Loop 50 Unit 6 Electronic Communications 54 Passage A Introduction to Electronic Communications 54 Passage B The Principle of PCM 64 Passage C Information Sources 70 Unit 7 Digital Modulation and Multiplexing 80 Passage A Digital Modulation 80 Passage B Binary and Multilevel Modulation 84 Passage C Multiplexing 92 Unit 8 Electromagnetic Field and Wave 94 Passage A The Foundation of Electromagnetic Field 94 Passage B Maxwell Equations 98 Passage C EBG and Metamaterials 103 Unit 9 Digital Signal Processing 105 Passage A Basic Concepts of DSP 105 Passage B Digital Signal Processors 111 Passage C Comparison of DSP and ASP 117 Unit 10 Images and Televisions 121 Passage A Digital Image Fundamentals 121 Passage B Compression/Decompression Techniques 126 Passage C Television 131 Unit 11 Modern Switching Technique 133 Passage A The Principles of Digital Switching 133 Passage B Circuit Switching and Packet Switching 141 Passage C ATM 146 Unit 12 Optical Fiber Communication 149 Passage A The General System 149 Passage B Advantages of Optical Fiber Communication 154 Passage C Fiberª²optics Communications 161 Unit 13 Microwave and Satellite Communications 163 Passage A Microwave and Satellite Communication Based Radio Systems 163 Passage B The Composite Link of Satellite Communications 169 Passage C The Mobile Satellite Channel 174 Unit 14 3rd Generation Mobile Communications 179 Passage A TDª²SCDMA-a 3G Radio Access Technology 179 Passage B Summary of the Main Parameters in WCDMA 187 Passage C Planning Ahead: Technology Choices in a Complex World 190 Unit 15 Network 194 Passage A Computer Networks(1) 194 Passage B Computer Networks(2) 199 Passage C Network 210 Unit 16 Internet of Things 213 Passage A Basics about Internet of Things 213 Passage B IoT Elements 219 Passage C RFID 222 ²Î¿¼ÒëÎÄ 225 ²Î¿¼´ð°¸ 248 ²Î¿¼ÎÄÏ× 264