Required Signal-to-Noise Ratios for HF Communication Systems

Abstract

Values of required signal-to-noise ratios are estimated for the following HF communication systems: amplitude-modulation (AM) voice communication systems, noncoherent frequency-shift-keying (NCFSK) radioteletypewriter systems, composite voice and teletypewriter systems, aural-reception radiotelegraphy, and phototelegraphy (facsimile). Except for NCFSK systems, for which certain aspects of the basic performance had to be evaluated in the course of this study, values of required signal-to-noise ratios are estimated from published data in the open literature.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0697579

Entities

People

  • Gene G. Ax
  • Hiroshi Akima
  • Wesley M. Beery

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Bandpass Filters
  • Communication Channels
  • Communication Systems
  • Demodulators
  • Digital Communications
  • Ecology
  • Electromagnetic Wave Propagation
  • Frequency Shift
  • Human Factors Engineering
  • Modulation
  • Modulators
  • Multiplexing
  • Probability Distributions
  • Radio Communications
  • Radio Equipment
  • Voice Communications

Fields of Study

  • Engineering
  • Physics

Readers

  • Radio communications and signal processing.