Numerical FM Demodulation Enhancements.

Abstract

An analysis of the backward difference numerical FM demodulation process is presented. Both theoretical and simulated results are given. A method of enhancing the performance of the demodulator in specific receive signal conditions using frequency feedback techniques is developed and evaluated. The receive signal conditions that are addressed are frequency deviations that are large relative to the bandwidth of the message signal, a low uniform sample rate resulting from decimation, and noise strengths that yield values of input carrier to noise ratio of the order of ten (10) db or more.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA311269

Entities

People

  • Andrew J. Noga

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Automatic Frequency Control
  • Bandwidth
  • Communication Systems
  • Computational Science
  • Computer Simulations
  • Demodulation
  • Demodulators
  • Detectors
  • Digital Signal Processing
  • Electrical Engineering
  • Frequency
  • Frequency Bands
  • Frequency Modulation
  • Frequency Response
  • Local Oscillators
  • Mathematical Models
  • Random Variables

Readers

  • Radio communications and signal processing.