Methods of Discrete-Time Phase and Frequency Synchronization

Abstract

Further analysis of the reconstituted numerical FM with feedback (RNFMFB) has been performed, and these results are presented. It is shown that the RNFMFB demodulator is capable of achieving both phase and frequency synchronization in discrete-time applications. In contrast to the digital phase locked loop (DPLL), the RNFMFB is simple to use and can operate at low sampling rates. In addition to providing low SNR threshold enhancement, the RNFMFB demodulator also provides enhancement as the input SNR increases above threshold. This is again, in contrast to currently employed DPLL algorithms which can only provide threshold enhancement. Simulations and analyses are presented which verify this performance enhancement achieved by the RNFMFB demodulator.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1999
Accession Number
ADA365462

Entities

People

  • Andrew J. Noga

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Air Force Research Laboratories
  • Algorithms
  • Carrier Frequencies
  • Demodulation
  • Demodulators
  • Detection
  • Detectors
  • Digital Signal Processing
  • Estimators
  • Frequency
  • Modulation
  • Oscillators
  • Phase Detectors
  • Phase Modulation
  • Signal Processing
  • Simulations

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Control Systems Engineering.
  • Radar Systems Engineering.