A fair review of non-parametric bias-free autocorrelation and spectral methods for randomly sampled data in laser Doppler velocimetry

N Damaschke, V Kühn, H Nobach - Digital Signal Processing, 2018 - Elsevier
This paper presents a comparison of currently available methods for non-parametric and
bias-free estimation of the autocorrelation function and power spectral density from …

Estimation of burst-mode LDA power spectra

CM Velte, WK George, P Buchhave - Experiments in fluids, 2014 - Springer
The estimation of power spectra from LDA data provides signal processing challenges for
fluid dynamicists for several reasons: acquisition is dictated by randomly arriving particles …

Local time estimation for the slotted correlation function of randomly sampled LDA data

H Nobach - Experiments in Fluids, 2002 - Springer
The task of autocorrelation and power spectral density estimation from velocity data sampled
irregularly in time by a laser-Doppler anemometer (LDA) is addressed in this article. A new …

[图书][B] Characterization of vortex generator induced flow

CM Velte, MOL Hansen, WK George, KE Meyer - 2009 - orbit.dtu.dk
The aim of this thesis is the characterization and modeling of the longitudinal structures
actuated by vortex generators. Results from generic studies performed at low Reynolds …

Corrections to the direct spectral estimation for laser Doppler data

H Nobach - Experiments in Fluids, 2015 - Springer
An algorithm for estimating the power spectral density and the correlation function of laser
Doppler-generated data sets is introduced. The algorithm is of the type of direct spectral …

A model-free noise removal for the interpolation method of correlation and spectral estimation from laser Doppler data

H Nobach - Experiments in Fluids, 2015 - Springer
A procedure to estimate and remove the contribution of data noise to the correlation function
and the power spectral density calculated from laser Doppler data with the interpolation …

Practical aspects of the spectral analysis of irregularly sampled data with time-series models

PMT Broersen - IEEE Transactions on Instrumentation and …, 2009 - ieeexplore.ieee.org
Several algorithms for the spectral analysis of irregularly sampled random processes can
estimate the spectral density for a low frequency range. A new time-series method extended …

Experimental and numerical investigation of swirl induced self-excited instabilities at the vicinity of an airblast nozzle

P Fokaides, M Weiß, M Kern, N Zarzalis - Flow, turbulence and combustion, 2009 - Springer
We report on the experimental and numerical investigation of swirl induced self-excited
instabilities in the form of precessing helical structures at the vicinity of an Airblast Atomiser …

Time-series analysis of differential pressure and flow velocity signals by means of weighted statistics

S Chun - Measurement, 2022 - Elsevier
Turbulence intensity levels are assigned different values according to set a probability
distribution. Many researchers do not consider probability distributions when determining …

A direct spectral estimation method for laser doppler data using quantization of arrival times

N Damaschke, V Kühn, H Nobach - … on the Application of Laser and …, 2018 - pure.mpg.de
This paper presents a method for estimating the autocorrelation function and the power
spectral density from laser Doppler data with discretized arrival times. The method can be …