NOTES ON THE ANALYSIS OF LOW-FREQUENCY AMBIENT SIGNALS

Abstract

The ambient electrical signals in the sea in the 2- to 50-c range were recorded on a Magnecorder magnetic tape. Study showed that the analysis of these signals with a Muirhead-Pametrada wave analyzer and an auxiliary modulator unit would not be feasible because of the amount of hum present throughout the original recording. This hum would generate a troublesome proportion of intermodulation distortion and would confuse the interpretation of results. Furthermore, similar experiments are being made by Electromechanical Industries Inc. with superior apparatus.

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Document Details

Document Type
Technical Report
Publication Date
Nov 04, 1953
Accession Number
AD0022402

Entities

People

  • Ray W. Jackson

Organizations

  • Yale University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Analyzers
  • Bandwidth
  • Carrier Frequencies
  • Demodulation
  • Detectors
  • Electron Tubes
  • Frequency
  • Frequency Analyzers
  • Frequency Modulation
  • Magnetic Tape
  • Modulation
  • Modulators
  • Recording Systems
  • Spectrum Analyzers
  • Tape Recorders
  • Wave Analyzers

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electronics Engineering
  • Systems Analysis and Design

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems