An Evaluation of Modulation Systems

Abstract

The report summarizes the results of a theoretical and experimental study of the relative strengths and weaknesses of amplitude shift keying, phase shift keying and quadriphase shift keying systems. The report is a combination review report and research monograph. Ideal theoretical results are discussed, and methods of practical realization are described. New research results include the determination of the standard deviation of the arrival time as a function of modulation, simple formulas for the degradation in both digital and analog systems due to adjacent-channel interference, and simple upper bounds for intersymbol interferences. The use of the formulas are all examined experimentally.

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Document Details

Document Type
Technical Report
Publication Date
Sep 11, 1973
Accession Number
AD0779842

Entities

People

  • Don J. Torrieri
  • James N. O'connor

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Adjacent-Channel Interference
  • Amplifiers
  • Amplitude Modulation
  • Analog Systems
  • Carrier Frequencies
  • Demodulation
  • Digital Data
  • Frequency
  • Frequency Shift
  • Generators
  • Intersymbol Interference
  • Low Pass Filters
  • Measurement
  • Modulation
  • Modulators
  • Phase Shift

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Radio communications and signal processing.