A FLEXIBLE INCREMENTAL PHASE SERVO WITH DIGITAL OUTPUTS FOR INDICATING PHASE AND DOPPLER FREQUENCY OF IONOSPHERICALLY PROPAGATED RADIO SIGNALS

Abstract

A flexible solid-state phase-tracking system designed for use on ionospherically propagated radio signals is described. The output is basically digital in form and suitable for use with automatic data processing systems. The unit provides an output equal to the rate of change of phase or Doppler frequency of the incoming signal and is sufficiently flexible to be used on VLF through HF signals. The design is described and specifications of the prototype unit included. Some examples of results obtained using the equipment are given.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1968
Accession Number
AD0668594

Entities

People

  • Richard N. Grubb

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Amplifiers
  • Control Systems
  • Converters
  • Data Processing
  • Detectors
  • Ecology
  • Field Effect Transistors
  • Frequency
  • Frequency Shift
  • Impedance
  • Logic
  • Logic Gates
  • Measurement
  • Oscillators
  • Phase Detectors
  • Radio Signals
  • Repetition Rate

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Radar Systems Engineering.
  • Software Engineering