Pulse Sounding With Closely Spaced Receivers as a Tool for Measuring Atmospheric Motions and Fine Structure in the Ionosphere. VII. Data Processing With Different Techniques for Cross-Power Spectra.

Abstract

Power spectra, phase spectra, and coherency spectra from a three-antenna experiment are useful for a study of ionospheric structure. Four different techniques for obtaining these spectra are described, examined, and compared. They are the Frequency-Averaging Method (FAM), the Block-Averaging Method (BAM), the Maximum-Likelihood Method (MLM) and the Autoregressive Method. Examples using measured data demonstrate the capabilities and limits of the processing techniques which from the overall viewpoint favor the FAM.

Document Details

Document Type
Technical Report
Publication Date
Apr 07, 1975
Accession Number
ADA015045

Entities

People

  • G. Sales
  • R. Varad
  • W. Pfister

Organizations

  • Air Force Cambridge Research Laboratories

Tags

DTIC Thesaurus Topics

  • Atmospheric Motion
  • Biological Phenomena
  • Data Processing
  • Diffraction
  • Ecological And Environmental Phenomena
  • Frequency
  • Image Processing
  • Information Processing
  • Ionosphere
  • Power Spectra
  • Spectra
  • Wave Phenomena

Readers

  • Approximation Theory.
  • Astronomy and Astrophysics.
  • Software Engineering

Technology Areas

  • Space