Simplified Error Probability Curves for 'Non-Fading' and Rayleigh-Fading Digital Links, and Their Application to Design Margins

Abstract

Straight line relationships (plus added constants for various pulse code modulations) for error probability vs. carrier to noise ratio are shown to be possible for both 'non-fading' and Rayleigh-fading radio links. These are used to show the effects of fades, relative to the nominal 'non-fading' design, independently of the specific pulse code modulation technique. Common causes and levels of such fades are listed; particularly those experienced on spacecraft/ aircraft to ground/sea links. The relative performance of 'non-fading' and Rayleigh-fading links (with any number of diversities) is discussed. Some general conclusions and guidance on 'fade margins' are given.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1969
Accession Number
AD0863606

Entities

People

  • Bertram M. Hadfield

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Aerospace Craft
  • Air Force
  • Aircrafts
  • Bandwidth
  • Carrier Frequencies
  • Demodulation
  • Electromagnetic Wave Propagation
  • Frequency
  • Line Of Sight
  • Measurement
  • Modulation
  • Probability
  • Pulse Code Modulation
  • Radio Links
  • Sequences
  • Spacecraft

Readers

  • Radio communications and signal processing.
  • Systems Analysis and Design

Technology Areas

  • Space