1998 journal article
Enhanced power spectrum estimates using Kalman reconstruction
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 120(2), 253β256.
A number of power spectral density (PSD) estimators were assessed using real laser Doppler anemometer (LDA) data from grid generated turbulence. PSD estimates from the raw data via the slotting technique and direct transform method were compared to those estimated from sample and hold, linear, and Kalman reconstructed velocity time histories. Of the reconstruction schemes, only Kalman reconstruction was shown to significantly reduce the effects of noise on the measurements leading to an additional 2 decades in power of high frequency information.