National-instruments Order Analysis Toolset Manual de usuario descargar pdf (Pagina 61)

Glossary

order curves The high power density curves in a spectral map which indicate order

components.

orthogonal-like Gabor

transform pair

The pair is composed of a Gabor transform and a Gabor expansion when

the Gabor coefficients c

m, n

found by each method are the projection of the

signal on the synthesis window function h[k].

over sampling Occurs in a Gabor transform when the window length is greater than the

window shift step. In over sampling, the number of Gabor coefficients c

m, n

is more than the number of original data samples s[k].

resampling A method to sample a time sequence at a different time interval.

RMS Root mean square.

RPM Revolutions per minute.

STFT Short time Fourier transform.

window shift step The shortest time interval between two windows. In the LabVIEW Order

Analysis Toolset, it is always equal to a quarter (0.25) of the window

length. For example, if the window length is 2,048, the window shift is 512.

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National-instruments Order Analysis Toolset Manual de usuario Pagina 61