Analysis of Nonstationary Wind Fluctuations Using the Hilbert-Huang Transform
XU Jing-Jing1, 2 , HU Fei2, * 
Analysis of Nonstationary Wind Fluctuations Using the Hilbert-Huang Transform |
|
XU Jing-Jing
|
| Figure 4 Number of observations in each direction bin for four seasons for the years 2010-11 top. Two-year averaged Hilbert spectrum according to wind directions bottom. The bins that have spectrum numbers below 500 have been removed. |
| |