G-Filtering Nonstationary Time Series

Figure 4

(a) the Signal, (b) Dual data, (c) Wigner-Ville plot for (a), (d) Wigner-Ville Plot for (b), (e) and (f) Results of low-pass and high-pass filters on dual data (g, h) Filtered components in (e, f) plotted on original time scale.

(a) TVF data

(b) Dual data

(c) Wigner-Ville plot for (a)

(d) Wigner-Ville plot for (b)

(e) Low-frequency dual component

(f) High-frequency dual Component

(g) Recovered Low-frequency TVF component

(h) Recovered high-frequency TVF component