Table 4 Signal frequency estimation results of intermittent chaotic systems under the Lévy noise with characteristic index \(\alpha =1.5\), deflection parameter \(\beta =0\) and noise intensity \(D=0.1\)
Method | Actual frequency (Hz) | Estimation frequency | Estimation error rate |
|---|---|---|---|
Single Duffing | 10 | 9.8840 | \(3.1\%\) |
Double Duffing | 10 | 9.6896 | \(1.1\%\) |
Ours | 10 | 9.9946 | \(0.054\%\) |