Figure 9

Estimation of adaptive parameters: (a) \(\gamma _{11} (t)\), \(\gamma _{12} (t)\), \(\gamma _{13} (t)\), \(\gamma _{21} (t)\), \(\gamma _{22} (t)\), \(\gamma _{23} (t)\) and (b) \(\theta _{11} (t)\), \(\theta _{12} (t)\), \(\theta _{13} (t)\), \(\theta _{21} (t)\), \(\theta _{22} (t)\), \(\theta _{23} (t)\)