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Avtometriya

2004 year, number 2

INVESTIGATION OF PARTICLE VELOCITY MEASUREMENT ERRORS BY THE WAVELET ANALYSIS OF THE DOPPLER SIGNAL

T.V.Kudryashov and V.A.Grechikhin
Moscow
Pages: 97–103

Abstract

The method of the wavelet analysis of signals of the laser Doppler anemometer (LDA) used to measure the velocity of light-scattering particles in a given local area of an aerodynamic or hydrodynamic flow is considered. The errors in velocity estimates are analyzed; these errors are caused by setup parameters, chosen observation conditions, and characteristics of the processing algorithm of the output LDA signal. Recommendations on the measurement technique are given.