PARTⅠ Chapter 1Introduction 11Historical Review of Communication 12Message,Information,and Signal 13Digital Communication 131Basic Concept 132Advantages of Digital Communication 133Digital Communication System Model 134Specifications of Digital Communication System 14Channel 141Wireless Channel 142Wired Channel 143Channel Models 144Influence of Channel Characteristics on Signal Transmission 15Noise in Channel 16Brief Summary Questions Exercises Chapter 2Signals 21Classification of Signals 22Characteristics of Deterministic Signals 221Characteristics in Frequency Domain 222Characteristis in Time Domain 23Characteristics of Random Signals 231Probability Distribution of Random Variable 232Probability Density of Random Variable 24Examples of Frequently Used Random Variables 25Numerical Characteristics of Random Variable 251Mathematical Expectation 252Variance 253Moment 26Random Process 261Basic Concept of Random Process 262Stationary Random Process 263Ergodicity 264Autocorrelation Function and Power Spectral Density of Stationary Random Process 27Gaussian Process 28Narrow Band Random Process 281Basic Concept of Narrow Band Random Process 282Characteristics of Narrow Band Random Process 29Sinusoidal Wave plus Narrow Band Gaussian Process 210Signal Transfer through Linear Systems 2101Basic Concept of Linear Systems 2102Deterministic Signal Transfer through Linear Systems 2103Random Signal Transfer through Linear Systems 211Brief Summary Questions Exercises Chapter 3Analog Modulation System 31Introduction 32Linear Modulation 321Amplitude Modulation (AM) 322Doublesideband Modulation (DSB) 323SingleSideband Modulation (SSB) 324Vestigial Sideband Modulation (VSB) 33Nonlinear Modulation 331Basic Principles 332Frequency Spectrum and Bandwidth of Modulated Signal 333Reception of Angular Modulated Signal 34Brief Summary Questions Exercises Chapter 4Digitization of Analog Signal 41Introduction 42Sampling of Analog Signal 421Sampling of LowPass Analog Signal 422Sampling of BandPass Analog Signal 423Analog Pulse Modulation 43Quantization of Sampled Signal 431Principles of Quantization 432Uniform Quantization 433Nonuniform Quantization 44Pulse Code Modulation 441Basic Principles of Pulse Code Modulation 442Natural Binary Code and Fold Binary Code 443Quantization Noise in PCM System 45Differential Pulse Code Modulation 451Principles of Differential Pulse Code Modulation 452Quantization Noise and Signal to Quantization Noise Ratio in DPCM System 46Delta Modulation 461Principles of Delta Modulation 462Quantization Noise in Delta Modulation System 47Brief Summary Questions Exercises Chapter 5Representation and Transmission of Baseband Digital Signal 51Introduction 52Coding Method of Character 53Waveform of Baseband Digital Signal 54Symbol Code Types of Baseband Digital Signals for Transmission 55Frequency Characteristic of Baseband Digital Signal 551Calculation of Power Spectral Density of vc(t) 552Calculation of Power Spectral Density of uc(t) 553Calculation of Power Spectral Density of s(t) 554Examples of Power Spectral Density Calculation 56Transmission and Intersymbol Interference of Baseband Digital Signal 561Model of Baseband Digital Signal Transmission System 562Intersymbol Interference and Nyquist Criterion 563Partial Response System 57Eye Pattern 58Timedomain Equalizer 581Introduction 582Fundamental Principle of Transversal Filter 583Realization of Transversal Filter 59Brief Summary Questions Exercises Chapter 6Elementary Digital Modulation System 61Introduction 62Binary Amplitude Shift Keying (2ASK) 621Basic Principle 622Power Spectral Density 623Symbol Error Probability 63Binary Frequency Shift Keying (2FSK) 631Basic Principle 632Power Spectral Density 633Minimum Frequency Space 634Symbol Error Probability 64Binary Phase Shift Keying (2PSK) 641Basic Principle 642Power Spectral Density 643Symbol Error Probability 65Binary Differential Phase Shift Keying (2
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