The Effect of Multipath on Digital Communications Systems: With Application to Space Station.

Abstract

Analysis of the effect of multipath propagation on digital communications systems was conducted. A brief overview of the root causes of multipath propagation was included in this discussion. Probabilities of error were then derived for a generalized digital communications system experiencing Rician fading due to multipath propagation. Exact results were obtained for equiprobable M-ary Frequency Shift Keyed and M-ary Phase Shift Keyed modulation schemes used to transmit digital data. Furthermore, the probability of error was obtained for a generalized digital communication system experiencing single-bit Intersymbol Interference due to multipath propagation. Finally, the performance of digital communication links for NASA's Space Station operating in the presence of Intersymbol Interference was evaluated. Results obtained tend to show that severe communication system performance degradation may occur on those links under certain transmitter/receiver and Space Station geometries. (Thesis).

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA178578

Entities

People

  • William J. Toti

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Antennas
  • Communication Systems
  • Computers
  • Digital Communications
  • Digital Data
  • Frequency
  • Frequency Shift
  • Geometry
  • Intersymbol Interference
  • Mathematical Models
  • Modulation
  • Multipath Transmission
  • Phase Shift
  • Probability
  • Random Variables
  • Space Stations
  • United States Naval Academy

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.

Technology Areas

  • Space
  • Space - Satellites