RECONSTRUCTION OF FUNCTIONS FROM DISCRETE MEAN VALUES,

Abstract

For automatic processing, gravity anomalies and similar quantities are conveniently stored as mean values of standard-sized blocks formed by the grid of geographical coordinates say 5 minutes x 5 minutes or 1 degree x 1 degree. For the most part, these mean values can be directly used in the numerical integrations of physical geodesy. Near the computation point, however, where the integrand frequently becomes singular or nearly so, a more detailed representation of the gravity anomaly function may be necessary. For application to such and other purposes, the present paper considers the approximate reconstruction of the original form of a function of one or two variables from equidistant mean values by various methods, including Bernoulli polynomials and spectral analysis. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1966
Accession Number
AD0488691

Entities

People

  • Helmut Moritz

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Automatic
  • Computations
  • Gravity
  • Gravity Anomalies
  • Grids
  • Mathematics
  • Numerical Integration
  • Polynomials
  • Standards

Fields of Study

  • Mathematics

Readers

  • Approximation Theory.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)