Slave System Dimension Expansion Approach for Robust Synchronization of Chaotic Systems with Unknown Phase Difference

Figure 8

The relationship of similarity function 𝐒(𝝉) and 𝝉 under 𝐤=−𝟏.𝟐. Curve 1 is with our increased system (5) when 𝐦=𝟏𝟏𝟐. Curve 2 is with the system (4) when 𝐡^′=𝐡, 𝝓^′=𝟎, curve 3 is in the case of 𝝓^′=𝟎.𝟏, curve 4 is in the case of 𝝓^′=𝟎.𝟓, and curve 5 is in the case of 𝝓^′=𝟏.