System and Method for Recovering a Signal of Interest from a Phase Modulated Signal Using Quadrature Sampling.

Abstract

A digital receiver system is used to recover a signal of interest, such as a measured signal, from a phase modulated signal detected from a system utilizing quadrature carriers, such as a fiber optic interferometer sensor system. The digital receiver system includes a quadrature sampling demodulator that samples the phase modulated signal by using quadrature sampling periods to recover the odd and even components of the signal of interest. The digital receiver system can be used with an interferometer sensor system having an array of sensors that multiplex the measurand signals, e.g., using time or wavelength division multiplexing. Sampling with quadrature time samples provides a spacing in time between the samples that allows additional sensors to be multiplexed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 10, 1997
Accession Number
ADD018866

Entities

People

  • Antonio L. Deus Iii
  • Barry A. Blakely
  • Gerald L. Assard

Organizations

  • United States Department of the Navy

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Bandwidth
  • Carrier Frequencies
  • Demodulation
  • Demodulators
  • Distortion
  • Dynamic Range
  • Frequency
  • Inventions
  • Local Oscillators
  • Modulation
  • Modulators
  • Multiplexing
  • Optical Fibers
  • Sidebands
  • Square Roots
  • Wavelength Division Multiplexing

Fields of Study

  • Engineering

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Radio communications and signal processing.

Technology Areas

  • Space
  • Space - Space Objects