Study on Frequency Domains of Flood by Using Empirical Mode Decomposition and HHT
Xiaohong Chen · Journal of South China Normal University · 2012
According to the empirical mode decomposition and HHT,this paper analysis the flood process.The six floods processes have been study on the Wujiang River.The results showed that: the flood energy has concentrated in 0.1 Hz.And floods showed flood time series have more energy components characteristics.All components,which has decomposed by EMD method,have a clearer physical meaning.The signal instantaneous average,which can be obtain by 3-spline interpolation,brought endpoint winger phenomenon.