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Artificial Intelligence and Soft Computing: Behavioral ... - Arteimi.info

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The complementary function for the equation (16.27) is given by<br />

Yk = A (I -αI) k , (16.28)<br />

where A is a constant matrix, to be determined from the boundary condition.<br />

The particular integral for equation (16.27) is given by<br />

Yk =[ EI - (I- αI)] -1 (α - α ′ )D. (16.29)<br />

Since (α - α ′ )D is a constant vector, we substitute E =I in (16.29), <strong>and</strong> thus<br />

find the particular integral as follows:<br />

Yk = [αI] -1 (α - α ′ )D<br />

= D - (α′ / α ) D. (16.30)<br />

The complete solution for Yk is thus given by<br />

Yk = A (I -αI) k + D - (α′/ α ) D (16.31)<br />

Ek = D - Yk<br />

= (α′/ α ) D - A (I -αI) k . (16.32)<br />

For 0 < α < 2, as evident from expression (16.32), Ek converges to a stable<br />

point with a steady-state value of (α′/ α ) D. The steady-state value of Ek is<br />

thus inversely proportional to α.<br />

16. 7.3 Evaluation of Input Excitation<br />

by Fuzzy Inverse<br />

The input neuronal excitation / control signal vector Xk+1 for the motor<br />

actuation signal vector Yk is evaluated autonomously with the help of the<br />

following relation:<br />

Xk+1 = Wk -1 o Yk.<br />

The estimation of Wk -1 from Wk can be carried out by a new formulation of<br />

AND-OR compositional inverse, as outlined in chapter 10.

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