Periodic Variations in the Direction of Arrival of HF Signals.

Abstract

A general digital program is presented to calculate the power spectral density of digital data representing a time series. Direct and indirect methods for computation of a power spectrum are analyzed. Two basic algorithms for the computation of an autocovariance are compared in a simulation study. Several methods for generating and presenting the spectral plots are discussed and used.

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0860319

Entities

People

  • Donald E. Brewer
  • Edward W. Ernst

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Angle Of Arrival
  • Computational Complexity
  • Computations
  • Digital Data
  • Mathematical Analysis
  • Mathematics
  • Periodic Variations
  • Power Spectra
  • Simulations
  • Spectra

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Radio communications and signal processing.
  • Theoretical Analysis.