Development and Evaluation of a Double Sideband Doppler VOR System with High Level Reference Modulation

Abstract

The report describes the development and evaluation of an improved Doppler VOR System which will provide improvement of receiver compatibility with existing receiving equipment and reduction of station bearing error with some additional reduction of 'siting effects' and a reduction of counterpoise size. A new method of providing the 30 Hz amplitude modulation of the carrier, applicable to either the present Single Sideband or the Double Sideband Doppler VOR System for increased carrier power is also described.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0724566

Entities

People

  • Virgil E. Willey

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplitude Modulation
  • Automatic Frequency Control
  • Carrier Frequencies
  • Cross Modulation
  • Doppler Effect
  • Frequency Modulation
  • Measurement
  • Modulation
  • Modulators
  • Navigation
  • Radiation Patterns
  • Radio Ranges (Transmitters)
  • Recording Systems
  • Test And Evaluation
  • Transmitters
  • Waveforms

Readers

  • Aerospace Test and Evaluation
  • Radar Systems Engineering.