Basic Communication Theory

Basic Communication Theory

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Description

This book is intended to help undergraduate students to understand the basic ideas and methods used for the modulation of signals in communication systems. The core of the material is in three broad areas of modulation - analogue, keying and digital. An explanation of the basic ideas of communication theory is followed by sections on the definitions and mathematics involved in signal representation.show more

Product details

  • Paperback | 304 pages
  • 174 x 235 x 16mm | 520g
  • Pearson Education (US)
  • Prentice Hall
  • Upper Saddle River, United States
  • English
  • 013061078X
  • 9780130610782

Table of contents

Part 1 Introduction: communications systems; telecommunications; design considerations. Part 2 Sinusoids: sinusoidal expressions - time domain; frequency domain spectra; rotating phasors; stationary phasors; complex exponential representation. Part 3 Fourier series: Fourier series - single and double sided; spectra - amplitude and phase plots. Part 4 Fourier transforms: Fourier transforms - methods of doing; spectra - amplitude and phase plots. Part 5 Voltage transfer functions. Part 6 Signals and modulation: analogue, digital and binary signals; examples of use; baseband bandwidth calculations; need for and types of modulation. Part 7 Amplitude modulation theory: conventional AM ; product modulation - DSBSC; SSB by filtering and synthesis; VSB, ISB. Part 8 Amplitude modulators: balanced modulation; product modulators - especially variable transconductance; diode modulators; use of balanced modulators to produce all types of AM; power modulators. Part 9 Amplitude demodulation: diode modulators - envelope and square law; coherent demodulation; phase and frequency errors in coherent demodulation. Part 10 Frequency modulation theory: basic FM theory; modulation by single sinusoid baseband; NBFM and phasor representation; WBFM and Bessel function spectra; bandwidth - Carson and 1per cent; modulation by band frequencies. Part 11 FM modulators: varactor modulators; voltage controlled oscillators - multivibrators and 566; Armstrong method. Part 12 FM Demodulation: basic principles; the discriminator; simple demodulators; tuned circuit phase shifts; ratio detector; quadrature detector; zero crossing detector; phase locked loop. Part 13 Phase modulation: basic PM theory; NBPM and WBPM; comparison to FM; PM generation and demodualtion. Part 14 Binary (keying) modulation: unipolar and bipolar binary basebands; methods and areas of use; descriptions of ASK, PSK and FSK; multilevel PSK and QAM; bandwidth consideration; examples of use. Part 15 Sampling: the action of sampling; the sampling of function; analysis of sampling - Nyquist criterion; aliasing; sample and hold. Part 16 Pulse analogue modulation: description of PAM, PWM and PPM; analysis of derive spectra; bandwidths; generation and recovery methods. Part 17 Pulse code modulation: coding samples by quantizing and digitizing; PCM bandwidth; quantization noise; companding; delta modulation. Part 18 Errors in PCM transmission: errors in digital signal transmission; the "language" of noise; intersymbol interference. Part 19 Multiplexing: frequency division multiplexing; time division multiplexing; CCITT multiplexing hierarchies; other methods.show more

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