Using Time Deformation to Filter Nonstationary Time Series with Multiple Time-Frequency Structures

Figure 10

(a) The data (101 : 400) with the first filtered component subtracted; (b) the Wigner-Ville time-frequency distribution of the data; (c) the dual data; (d) the Wigner-Ville time-frequency distribution of the dual; (e) the extracted stationary dual component; (f) the recovered 𝑀-stationary component.

(a)  Data (101–400) with First comp. subtracted

(b) Wigner-Ville plot for (a)

(c) Dual data (101–400)

(d) Wigner-Ville plot for (c)

(e) Extracted dual component 2

(f) Recovered component 2