Accession Number : ADP009001

Title :   Modern Spectral Analysis for LDV and PDA Data Processing,

Corporate Author : CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CHATENAY-MALABRY (FRANCE)

Personal Author(s) : Veynante, D. ; Lacas, F.

Report Date : 23 JUL 1992

Pagination or Media Count : 6

Abstract : Photodetector signals from phase Doppler anemometry systems (PDA) have to be processed to determine both frequencies and phase, corresponding to velocity and size of particles. This paper is concerned with the comparison of various methods for numerical processing of PDA signals. Both classical (Fast Fourier Transform) and modern non linear spectral analysis (Prony and Nutall-Strand) are investigated. (Author)

Descriptors :   *ANEMOMETERS, *PHOTODETECTORS, PHASE SHIFT, FAST FOURIER TRANSFORMS, SPECTRUM ANALYSIS, LINEAR SYSTEMS, TWO PHASE FLOW, PROBABILITY DENSITY FUNCTIONS, FRANCE.

Subject Categories : Test Facilities, Equipment and Methods
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE