An Automatic Method for Deducing D-Region Electron Densities from VLF Sounder Data.

Abstract

An automatic method for deducing electron density profiles consistent with experimental VLF-LF sounder data is described. The method uses a function optimization algorithm of Rosenbrock to minimize the differences between calculated and observed VLF-LF reflection coefficients. The calculated values are obtained by a numerical integration of the equations for wave propagation in an inhomogeneous, anisotropic ionosphere, and the experimental data is obtained from the Corona Laboratories' multifrequency, vertical incidence sounder. Numerical results are presented for several test problems and for two sets of real data. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1970
Accession Number
AD0865397

Entities

People

  • James N. Martin

Organizations

  • Naval Air Weapons Station China Lake

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Automatic
  • Charged Particles
  • Coefficients
  • Electron Density
  • Electrons
  • Elementary Fermions
  • Elementary Particles
  • Equations
  • Experimental Data
  • Fermions
  • Heuristic Methods
  • Ionosphere
  • Leptons
  • Mathematics
  • Numerical Integration
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics