A Fast 'Stretched Space' Method for Generating Synthetic Vertical Sheets of Non-Stationary Stochastic Atmospheric Structure.

Abstract

Geophysical phenomena are often characterized by known or assumed power spectral density functions that have an asymptotic negative power law slope dependency. Various filter synthesis methods are routinely employed to generate synthetic scenes from pseudorandom arrays by passing stochastic data through filters having a desired correlation structure and power spectral dependency. This report examines the possibility of producing a two dimensional Vertical sheet of nonstationary synthetic structure by means of a 'stretched space' transformation. Since computations that apply multidimensional transforms to large data arrays consume enormous computer resources and run times, the goal of his study is to find an alternate method to reduce the heavy computational burden. Future editions of the Phillips Laboratory Strategic High Altitude Atmospheric Radiance Code (SHARC) will feature an ability to calculate structured radiance.

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Document Details

Document Type
Technical Report
Publication Date
Mar 17, 1995
Accession Number
ADA304814

Entities

People

  • James H. Brown

Organizations

  • Phillips Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Altitude
  • Atmospheric Temperature
  • Computations
  • Computers
  • Data Science
  • High Altitude
  • Information Science
  • Mathematical Analysis
  • Power Spectra
  • Probability Density Functions
  • Radiance
  • Simulations
  • Stationary
  • Statistical Distributions
  • Two Dimensional
  • Wave Propagation

Readers

  • Calculus or Mathematical Analysis
  • Computational Fluid Dynamics (CFD)
  • Radar Systems Engineering.

Technology Areas

  • Space