A STRAIGHTFORWARD GENERAL ANALYSIS OF SIGNAL DISTORTION WITH APPLICATIONS TO WIDEBAND IONOSPHERIC DISPERSION

Abstract

The degradation of signal processor performance in terms of loss of resolution (i.e., increased main lobe width and increased sidelobes) is analyzed and calculated for dispersive media. The analysis gives insight into the distortion mechanisms and compares well with straightforward and precise numerical calculations. The distortion of wideband signals is described for the following situations: Ionospheric dispersion (above plasma frequency), waveguide operated near cutoff, time dilation, and frequency dependent cross section.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1968
Accession Number
AD0666428

Entities

People

  • J. T. Lynch

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Bandwidth
  • Diffraction
  • Distortion
  • Electromagnetic Radiation
  • Electron Density
  • Engineering
  • Frequency Bands
  • Fresnel Integrals
  • Integrals
  • Ionosphere
  • Phase
  • Phase Shift
  • Power Series
  • Radar Cross Sections
  • Waveforms
  • Weighting Functions

Fields of Study

  • Engineering

Readers

  • Calculus or Mathematical Analysis
  • Phased Array Antenna Design.
  • Space/Atmospheric Physics.