Mathematical Problems in Engineering / 2013 / Article / Fig 2

Research Article

On-Board Computing for Structural Health Monitoring with Smart Wireless Sensors by Modal Identification Using Hilbert-Huang Transform

Figure 2

Numerical HHT algorithm evaluated from on-board computing and offline computing for the first frequency case.
509129.fig.002a
(a) On-board original signal
509129.fig.002b
(b) Offline original signal
509129.fig.002c
(c) On-board band-pass filtered signal
509129.fig.002d
(d) Offline band-pass filtered signal
509129.fig.002e
(e) On-board IMF
509129.fig.002f
(f) Offline IMF
509129.fig.002g
(g) On-board phase unwrapping
509129.fig.002h
(h) Offline phase unwrapping