Figure 7

The effects of the coupling strength on the synchronization time under different impulse signals and impulse strengths. (A) The effects of the coupling strength k on the synchronization time under a constant signal input with the impulse strengths 0.1, 0.15 and 0.2, respectively. (B) The effects of the coupling strength k on the synchronization time under a square wave signal input with the impulse strengths 0.4, 0.6, 0.8 and 1, respectively. (C) The effects of the coupling strength k on the synchronization time under a sine signal input with the impulse strengths 0.8, 1, 1.2 and 1.4, respectively. (C) The effects of the coupling strength k on the synchronization time under the Gauss noise input with the mean strengths 0.01, 0.03, 0.05 and 0.07, respectively and standard deviation 0.001. Where the constant signal: the cyclic synthesis α₁ = aq. The square wave signal, the sine signal and the noise signal are corresponding to the following formula: ${\alpha }_1\left(\mathsf{\text{t}}\right)=\left\{\begin{array}{cc}\hfill \mathsf{\text{aq}}\hfill & \hfill if\left(tmod{t}_0\right)<t_1\hfill \\ \hfill 0\hfill & \hfill otherwise\hfill \end{array}\right.$, ${\alpha }_1\left(\mathsf{\text{t}}\right)=\left\{\begin{array}{cc}\hfill \mathsf{\text{a}}q\mathsf{\text{sin}}\left(t\right)\hfill & \hfill if\mathsf{\text{sin}}\left(t\right)>0\hfill \\ \hfill 0\hfill & \hfill otherwise\hfill \end{array}\right.$, ${\alpha }_1\left(\mathsf{\text{t}}\right)=\mathsf{\text{aq}}+\mathsf{\text{bq}}*rand$. Where aq is the signal strength, t₀ is set to 4 and t₁ is set to 2 in the square wave signal, bq is set to 0.001 when aq is 0.01 and bq is set to 0.01 when aq is larger than 0.01 in the noise signal.