caa a22 4500 606197486 CHVBK 20210128100929.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00348-015-2050-3 doi (NATIONALLICENCE)springer-10.1007/s00348-015-2050-3 Nobach Holger Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany aut Fuzzy time quantization and local normalization for the direct spectral estimation from laser Doppler velocimetry data [Elektronische Daten] [Holger Nobach] An adaptation of the fuzzy slotting method and the local normalization to the direct type of power spectral estimation are given. Using experimentally obtained data, it is shown that the two optional processing methods have equivalent influence on the estimated turbulence spectra, for the two processing types, the direct spectral estimation and the slotting technique. The question about the estimation quality of the fuzzy slotting and the local normalization is not addressed here. However, it is shown that the impact of fuzzy time quantization on the spectral density is that of a low-pass filter of a $$\text {sinc}^2$$ sinc 2 shape. Springer-Verlag Berlin Heidelberg, 2015 Experiments in Fluids Springer Berlin Heidelberg 56/9(2015-09-01), 1-9 0723-4864 56:9<1 2015 56 348 https://doi.org/10.1007/s00348-015-2050-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-2050-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nobach Holger Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/9(2015-09-01), 1-9 0723-4864 56:9<1 2015 56 348