Methods of Calculating the Effects of AM Interference on AM Systems

Abstract

Methods for calculating the audio frequency output of amplitude demodulators when the input signal is the linear sum of two amplitudemodulated carriers are described for the envelope detector, square-law demodulator and product demodulator. Defining the larger carrier as the desired signal, various audio frequency terms which result from the presence of the Interference can be calculated. It is concluded thatthe carrier, which itself conveys no information, contributes greatly to the interference. Other questions concerning the significance andusefulness of these calculations and some related topics are summarized.

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Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1959
Accession Number
AD0214492

Entities

People

  • W B Jr Jones

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Amplitude
  • Audio Frequency
  • Automatic Frequency Control
  • Demodulation
  • Demodulators
  • Detectors
  • Distortion
  • Equations
  • Frequency
  • Governments
  • Law
  • Modulation
  • Procurement
  • Sidebands
  • United States
  • Virginia

Readers

  • Radar Systems Engineering.