National Instruments Order Analysis Toolset - Manual (Page 27)

Chapter 2 Order Analysis
LabVIEW Order Analysis Toolset User Manual 2-12 ni.com
Figure 2-8 shows two examples of padding.
Figure 2-8. Padding Examples
Refer to Appendix A, Gabor Expansion and Gabor Transform , for more
information about the Gabor transform and the Gabor expansion.
Refer to Chapter 3, Gabor Transform-Based Order Tracking , for
information about how the LabVIEW Order Analysis Toolset uses a
method based on the Gabor transform for order tracking.
0.4
0.2
0.0
–0.2
–0.4
–384 –300 –200 –100 128 8064 8200 8300 8400 8500 8576
Time
(a) Zero Padding
0.4
0.2
0.0
–0.2
–0.4
–256 –100 0 200 7808 7900 8000 8100 8200 8320
Time
(b) Wrap Padding
100 256
Amplitude
Amplitude