Selective Fading on 8 GHz Long Paths in Europe.

Abstract

This report presents the description, analysis and results of a set of measurements made to obtain statistics about the distortion of the frequency spectrum amplitude across the IF band of a 3-level-partial-response, digital line-of-sight, microwave radio system. The length of path was about 90 km. Results show that for line-of-sight systems: (1) Large values of distortion (1 dB/MHz) were observed during multipath fading events; (2) Diversity reception looks very promising as an effective tool in counteracting these distortion effects; (3) Multipath received-signal-level statistics can be used to predict the frequency and severity of this type of distortion on a line-of-sight-path; and (4) The 3-level-partial-response modulation system used here was very robust in terms of its susceptibility to the severity of amplitude distortion observed on this path during the measurements. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA099490

Entities

People

  • Laurance G. Hause

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Analyzers
  • Communication Systems
  • Computer Programs
  • Data Analysis
  • Diversity Reception
  • Frequency
  • Instrumentation
  • Line Of Sight
  • Measurement
  • Modulation
  • Radio Equipment
  • Radio Receivers
  • Recording Systems
  • Spectrum Analyzers
  • Standards
  • Statistics
  • Tape Recorders

Readers

  • Computer Vision.
  • Electronics Engineering
  • Fluid Mechanics and Fluid Dynamics.