Effects of Modulation Index on Telecommunications

Abstract

The relationship between modulation index and telecommunication link was studied for the Deep Space Program Science Experiment. Analytical aspects of modulation index are presented with a brief overview of modulation process in the relational format. Relations of modulation index with bandwidth, ranging/ command/telemetry/carrier power losses, bit error rate, signal-to noise ratio, and hardware simulation results of DSPSE communication links have been investigated with samples of graphical analysis to show optimum ranges of modulation indexes. It is noted that the influence of modulation indexes should not be overlooked in space communication link analysis. Modulation index, Bandwidth, Bit error rate, Power loss, Signal-to-noise ratio, Probability of error, BPSK, DPSK, PSK, ASK, FM/AM.

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Document Details

Document Type
Technical Report
Publication Date
Sep 26, 1994
Accession Number
ADA286018

Entities

People

  • Junho Choi
  • Porter Lyon

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Artificial Satellites
  • Bandwidth
  • Communication Channels
  • Communication Systems
  • Communications Techniques
  • Demodulation
  • Digital Communications
  • Frequency Bands
  • Frequency Shift
  • Modulation
  • Modulators
  • Orthogonal Frequency Division Multiplexing
  • Probability
  • Pulse Modulation
  • Space Communications
  • Space Systems

Fields of Study

  • Physics

Readers

  • Radio communications and signal processing.

Technology Areas

  • Space