Criteria | $ \Sigma_1 $ | $ \Sigma_2 $ | $ \Sigma_3 $ | $ \Sigma_4 $ |
Passivity | 0 | 1 | $ \gamma = 0.5 $ | 0 |
Dissipativity | -1 | 1 | 2 | 0 |
$ H_\infty $ performance | -1 | 0 | $ \gamma^2 $ | 0 |
$ L_2 $-$ L_\infty $ performance | 0 | 0 | $ \gamma^2 $ | 1 |
In this paper, extended dissipative (ED) synchronization is considered for stochastic complex dynamical networks (SCDNs) with variable coupling delay via sampled-data control (SDC). First, a suitable Lyapunov–Krasovskii functional (LKF) is constructed, then a new synchronization criterion is obtained through stochastic integral inequality (SII) and linear matrix inequality (LMI) techniques. Moreover, the ED synchronization criteria are established, which consolidates passivity, dissipativity, $ H_\infty $, and $ L_2-L_\infty $ performances in a unified structure. SDC gain matrices are also designed for each performance in ED criteria. Finally, the feasibility and usefulness of the derived theoretical results are shown through numerical simulations.
Citation: |
Table 1. Matrix parameters for each cases in ED synchronization
Criteria | $ \Sigma_1 $ | $ \Sigma_2 $ | $ \Sigma_3 $ | $ \Sigma_4 $ |
Passivity | 0 | 1 | $ \gamma = 0.5 $ | 0 |
Dissipativity | -1 | 1 | 2 | 0 |
$ H_\infty $ performance | -1 | 0 | $ \gamma^2 $ | 0 |
$ L_2 $-$ L_\infty $ performance | 0 | 0 | $ \gamma^2 $ | 1 |
Table 2. SDC gain matrices for each performance in ED synchronization
Criteria | SDC gain matrices |
Passivity | $ \begin{array}{l} K_1 = K_5 = \left[ \begin{array} {ccc} -0.8104 &-0.1674\\0.0499&-1.6699 \end{array} \right], \;\;\; K_2 = K_4 = \left[ \begin{array} {ccc} 0.6884&-0.1835\\0.0605&-1.6412 \end{array} \right] , \\ \;\;\;\;\; K_3 = \left[ \begin{array} {ccc} 0.6969&-0.1761\\0.0581&-1.6111 \end{array} \right] \end{array}$ |
Dissipativity | $\begin{array}{l} K_1 = K_5 = \left[ \begin{array} {ccc} -0.7750&-0.1747\\-0.0155&-1.6717 \end{array} \right], \;\;\; K_2 = K_4 = \left[ \begin{array} {ccc} -0.7588&-0.1733\\-0.0169&-1.6445 \end{array} \right] , \\ \;\;\; K_3 = \left[ \begin{array} {ccc} -0.7567&-0.1693\\-0.0167&-1.6214 \end{array} \right]\end{array} $ |
$ H_\infty $ performance | $ \begin{array}{l}K_1 = K_5 = \left[ \begin{array} {ccc} -0.7310&-0.1789\\0.0532&-1.6689 \end{array} \right], \;\;\; K_2 = K_4 = \left[ \begin{array} {ccc} 0.5810&-0.2004\\0.0642&-1.6405 \end{array} \right] , \\ \;\;\; K_3 = \left[ \begin{array} {ccc} -0.5843&-0.1930\\0.0651&-1.6107 \end{array} \right] \end{array}$ |
$ L_2 $-$ L_\infty $ performance | $ \begin{array}{l}K_1 = K_5 = \left[ \begin{array} {ccc} -0.7715&-0.1847\\0.0286&-1.6624 \end{array} \right], \;\;\; K_2 = K_4 = \left[ \begin{array} {ccc} -0.6395&-0.2060\\0.0318&-1.6327 \end{array} \right] , \\ \;\;\; K_3 = \left[ \begin{array} {ccc} -0.6434&-0.1989\\0.0315&-1.6036 \end{array} \right] \end{array}$ |
Table 3. SDC gain matrices for each performance in ED synchronization
Criteria | SDC gain matrices |
Passivity | $ K_1 = \left[ \begin{array} {ccc} -1.4426& -0.0287 \\ -0.0390& -1.5145 \end{array} \right], \ K_2 = \left[ \begin{array} {ccc} -1.2444& 0.0080 \\ 0.0350& -1.3375 \end{array} \right] $ |
Dissipativity | $ K_1 = \left[ \begin{array} {ccc} -1.2143& -0.1133 \\ -0.1427& -1.4406 \end{array} \right], \ K_2 = \left[ \begin{array} {ccc} -0.8945& -0.1379\\ -0.1690& -1.2041 \end{array} \right] $ |
$ H_\infty $ performance | $ K_1 = \left[ \begin{array} {ccc} -1.5024& 0.0015 \\ 0.0212& -1.5711 \end{array} \right], \ K_2 = \left[ \begin{array} {ccc} -1.2859& 0.0376\\ 0.1014& -1.3978 \end{array} \right] $ |
$ L_2 $-$ L_\infty $ performance | $ K_1 = \left[ \begin{array} {ccc} -1.3752& -0.0691 \\ -0.0757& -1.4975 \end{array} \right], \ K_2 = \left[ \begin{array} {ccc} -0.9550& -0.1274\\ -0.1197& -1.2459 \end{array} \right] $ |
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Synchronization error (Example 1)
Generated control signals (Example 1)
Synchronization error (Example 2)
Generated control signals (Example 2)
Synchronization error of the first node for different cases (Example 2)
Generated control signals of the first node for different cases (Example 2)