FAR FIELD NOISE PREDICTION FROM NEAR FIELD SPECTRUM MEASUREMENTS

Abstract

A theory is presented for computing far field noise radiation from near field measurements. The relations are given for a spheroidal surface. It turns out that the same mathematical develop ment in spheroidal functions can be used both for single frequency and for moise spectrum.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0410113

Entities

People

  • Joshua E. Greenspon

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustics
  • Computational Science
  • Computer Programs
  • Cross Correlation
  • Equations
  • Far Field
  • Frequency
  • Mathematical Analysis
  • Mathematics
  • Measurement
  • Near Field
  • Power Spectra
  • Radiation
  • Radiation Patterns
  • Spectra
  • Wave Equations
  • Wave Functions

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Fluid Dynamics.
  • Theoretical Analysis.