LDA and PDA signal analysis using wavelets

Citation
H. Nobach et Hre. Van Maanen, LDA and PDA signal analysis using wavelets, EXP FLUID, 30(6), 2001, pp. 613-625
Citations number
16
Categorie Soggetti
Mechanical Engineering
Journal title
EXPERIMENTS IN FLUIDS
ISSN journal
07234864 → ACNP
Volume
30
Issue
6
Year of publication
2001
Pages
613 - 625
Database
ISI
SICI code
0723-4864(200106)30:6<613:LAPSAU>2.0.ZU;2-E
Abstract
A processing procedure is described that estimates the frequency and the ar rival time from signals measured with a laser Doppler anemometer (LDA) and additionally, the phase difference and the time delay of signals measured w ith a phase Doppler anemometer (PDA). The basis of the estimation procedure is a wavelet transform. The procedure described works iteratively, alterna ting between the time and the frequency domain. The performance of the esti mator is compared to other estimation procedures and the Cramer-Rao lower b ound using numerical simulations.