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Chapter 1 | Introduction to Electronic Communications | 1 | |
Introduction | 1 | ||
Electronic Communications Systems | 2 | ||
Modulation and Demodulation | 2 | ||
The Electromagnetic Spectrum | 4 | ||
Bandwidth and Information Capacity | 8 | ||
Transmission Modes | 10 | ||
Circuit Arrangements | 10 | ||
Signal Analysis | 14 | ||
Mixing | 27 | ||
Noise Analysis | 34 | ||
Questions | 46 | ||
Problems | 47 | ||
Chapter 2 | Signal Generation | 51 | |
Introduction | 51 | ||
Oscillators | 51 | ||
Large-Scale Integration Oscillators | 67 | ||
Phase-Locked Loops | 72 | ||
Frequency Synthesizers | 89 | ||
Questions | 95 | ||
Problems | 96 | ||
Chapter 3 | Amplitude Modulation Transmission | 100 | |
Introduction | 100 | ||
Principles of Amplitude Modulation | 100 | ||
Am Modulator Circuits | 116 | ||
Am Transmitters | 127 | ||
Quadrature Amplitude Modulation | 135 | ||
Questions | 135 | ||
Problems | 136 | ||
Chapter 4 | Amplitude Modulation Reception | 140 | |
Introduction | 140 | ||
Receiver Parameters | 140 | ||
Am Receivers | 145 | ||
Am Receiver Circuits | 158 | ||
Double-Conversion AM Receivers | 183 | ||
Net Receiver Gain | 183 | ||
Questions | 186 | ||
Problems | 186 | ||
Chapter 5 | Single-Sideband Communications Systems | 189 | |
Introduction | 189 | ||
Single-Sideband Systems | 189 | ||
Mathematical Analysis of Suppressed-Carrier AM | 197 | ||
Single-Sideband Generation | 197 | ||
Single-Sideband Transmitters | 205 | ||
Single-Sideband Receivers | 214 | ||
Amplitude Compandoring Single Sideband | 220 | ||
Single-Sideband Suppressed Carrier and Frequency-Division Multiplexing | 221 | ||
Double-Sideband Suppressed Carrier and Quadrature Multiplexing | 221 | ||
Single-Sideband Measurements | 223 | ||
Questions | 225 | ||
Problems | 225 | ||
Chapter 6 | Angle Modulation Transmission | 228 | |
Introduction | 228 | ||
Angle Modulation | 228 | ||
Commercial Broadcast-Band Fm | 245 | ||
Phasor Representation of an Angle-Modulated Wave | 245 | ||
Average Power of an Angle-Modulated Wave | 246 | ||
Noise and Angle Modulation | 248 | ||
Preemphasis and Deemphasis | 251 | ||
Frequency and Phase Modulators | 253 | ||
Frequency Up-Conversion | 259 | ||
Direct FM Transmitters | 262 | ||
Indirect FM Transmitters | 266 | ||
Angle Modulation Versus Amplitude Modulation | 270 | ||
Questions | 271 | ||
Problems | 271 | ||
Chapter 7 | Angle Modulation Receivers, FM Stereo, and Two-Way FM Radio | 275 | |
Introduction | 275 | ||
FM Receivers | 276 | ||
FM Demodulators | 276 | ||
Phase-Locked-Loop FM Demodulator | 282 | ||
Quadrature FM Demodulator | 284 | ||
FM Noise Suppression | 285 | ||
Frequency Versus Phase Modulation | 289 | ||
Linear Integrated-Circuit FM Receivers | 290 | ||
FM Stereo Broadcasting | 294 | ||
Two-Way FM Radio Communications | 303 | ||
Questions | 308 | ||
Problems | 309 | ||
Chapter 8 | Transmission Lines | 310 | |
Introduction | 310 | ||
Transverse Electromagnetic Waves | 310 | ||
Types of Transmission Lines | 313 | ||
Transmission-Line Equivalent Circuit | 317 | ||
Transmission-Line Wave Propagation | 322 | ||
Transmission-Line Losses | 325 | ||
Incident And Reflected Waves | 327 | ||
Standing Waves | 328 | ||
Transmission-Line Input Impedance | 333 | ||
Time-Domain Reflectometry | 340 | ||
Microstrip and Stripline Transmission Lines | 342 | ||
Questions | 344 | ||
Problems | 345 | ||
Chapter 9 | Electromagnetic Wave Propagation | 347 | |
Introduction | 347 | ||
Electromagnetic Polarization | 348 | ||
Rays and Wavefronts | 348 | ||
Electromagnetic Radiation | 348 | ||
Spherical Wavefront and the Inverse Square Law | 350 | ||
Wave Attenuation and Absorption | 351 | ||
Optical Properties of Radio Waves | 353 | ||
Terrestrial Propagation of Electromagnetic Waves | 359 | ||
Propagation Terms and Definitions | 364 | ||
Free-Space Path Loss | 366 | ||
Fade Margin | 367 | ||
Questions | 368 | ||
Problems | 369 | ||
Chapter 10 | Antennas and Waveguides | 371 | |
Introduction | 371 | ||
Basic Antenna Operation | 371 | ||
Antenna Reciprocity | 372 | ||
Antenna Terminology and Definitions | 373 | ||
Basic Antennas | 383 | ||
Antenna loading | 389 | ||
Antenna Arrays | 391 | ||
Special-Purpose Antennas | 394 | ||
Uhf and Microwave Antennas | 400 | ||
Waveguides | 409 | ||
Other Types of Waveguides | 417 | ||
Questions | 419 | ||
Problems | 420 | ||
Chapter 11 | Optical Fiber Communications | 422 | |
Introduction | 422 | ||
History of Optical Fibers | 422 | ||
Optical Fibers Versus Metallic Cable Facilities | 423 | ||
Electromagnetic Spectrum | 425 | ||
Optical Fiber Communications System Block Diagram | 425 | ||
Fiber Types | 427 | ||
Light Propagation | 429 | ||
Propagation of Light Through an Optical Fiber | 434 | ||
Optical Fiber Configurations | 435 | ||
Acceptance Angle and Acceptance Cone | 439 | ||
Losses in Optical Fiber Cables | 442 | ||
Light Sources | 450 | ||
Optical Sources | 452 | ||
Light Detectors | 458 | ||
Lasers | 460 | ||
Optical Fiber System Link Budget | 462 | ||
Questions | 464 | ||
Problems | 465 | ||
Chapter 12 | Digital Communications | 467 | |
Introduction | 467 | ||
Digital Communications | 468 | ||
Shannon Limit for Information Capacity | 468 | ||
Digital Radio | 470 | ||
Digital Amplitude Modulation | 470 | ||
Frequency Shift Keying | 471 | ||
Phase Shift Keying | 478 | ||
Quadrature Amplitude Modulation | 496 | ||
Bandwidth Efficiency | 504 | ||
Carrier Recovery | 505 | ||
Differential Phase Shift Keying | 507 | ||
Clock Recovery | 509 | ||
Probability of Error and Bit Error Rate | 509 | ||
Trellis Encoding | 517 | ||
Questions | 521 | ||
Problems | 522 | ||
Chapter 13 | Data Communications | 524 | |
Introduction | 524 | ||
History of Data Communications | 524 | ||
Standards Organizations for Data Communications | 525 | ||
Data Communications Circuits | 526 | ||
Data Communications Codes | 530 | ||
Error Control | 535 | ||
Synchronization | 543 | ||
Data Communications Hardware | 545 | ||
Serial Interfaces | 552 | ||
Parallel Interfaces | 559 | ||
The Telephone Network | 566 | ||
The Telephone Circuit | 572 | ||
Data Modems | 588 | ||
Questions | 601 | ||
Problems | 603 | ||
Chapter 14 | Data Communications Protocols and Network Configurations | 605 | |
Introduction | 605 | ||
Open Systems Interconnection | 606 | ||
Data Transmission Modes | 608 | ||
Asynchronous Protocols | 608 | ||
Synchronous Protocols | 610 | ||
Public Data Network | 626 | ||
Integrated Services Digital Network | 636 | ||
Local Area Networks | 645 | ||
Token Passing Ring | 651 | ||
Ethernet | 654 | ||
Fiber Distributed Data Interface | 659 | ||
Questions | 663 | ||
Problems | 665 | ||
Chapter 15 | Digital Transmission | 667 | |
Introduction | 667 | ||
Pulse Modulation | 668 | ||
Pulse Code Modulation | 668 | ||
Delta Modulation PCM | 695 | ||
Adaptive Delta Modulation PCM | 697 | ||
Differential Pulse Code Modulation | 698 | ||
Pulse Transmission | 698 | ||
Signal Power in Binary Digital Signals | 703 | ||
Questions | 704 | ||
Problems | 705 | ||
Chapter 16 | Multiplexing | 708 | |
Introduction | 708 | ||
Time-Division Multiplexing | 708 | ||
T1 Digital Carrier System | 709 | ||
CCITT Time-Division Multiplexed Carrier System | 717 | ||
Codecs | 717 | ||
Combo Chips | 718 | ||
North American Digital Hierarchy | 728 | ||
Line Encoding | 732 | ||
T-Carriers | 736 | ||
Frame Synchronization | 739 | ||
Bit Interleaving Versus Word Interleaving | 741 | ||
Statistical Time-Division Multiplexing | 741 | ||
Frequency-Division Multiplexing | 743 | ||
AT&T's FDM Hierarchy | 744 | ||
Composite Baseband Signal | 746 | ||
Formation of a Mastergroup | 748 | ||
Wavelength-Division Multiplexing | 754 | ||
Questions | 758 | ||
Problems | 759 | ||
Chapter 17 | Microwave Radio Communications and System Gain | 761 | |
Introduction | 761 | ||
Advantages of Microwave Radio Communications | 762 | ||
Analog Versus Digital Microwave | 763 | ||
Frequency Versus Amplitude Modulation | 763 | ||
Frequency-Modulated Microwave Radio System | 763 | ||
FM Microwave Radio Repeaters | 765 | ||
Diversity | 768 | ||
Protection Switching Arrangements | 771 | ||
FM Microwave Radio Stations | 773 | ||
Path Characteristics | 781 | ||
System Gain | 782 | ||
Questions | 790 | ||
Problems | 790 | ||
Chapter 18 | Satellite Communications | 793 | |
Introduction | 793 | ||
History of Satellites | 794 | ||
Kepler's Laws | 795 | ||
Satellite Orbits | 797 | ||
Geostationary Satellites | 801 | ||
Antenna Look Angles | 805 | <
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Electronic Communications Systems Fundamentals Through Advanced, All topics have been updated to present the latest information available in this fast-changing field, and completely new sections have been added to cover the following important topics:
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Electronic Communications Systems Fundamentals Through Advanced, All topics have been updated to present the latest information available in this fast-changing field, and completely new sections have been added to cover the following important topics:
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