OUTPUT ESTIMATION WITH MULTI-RATE SAMPLING

The proposed identification algorithm uses output values y(kJT), sampled after J intervals of duration T, and input values u(kT), where k equals 0, 1, 2, . . . . It is proven that the estimated output y//e(kT) converges asymptotically to the measured output at each sampling instant. The significance of the algorithm is that is provides a basis for control based on y//e(kT) to be performed at intervals of T rather than JT and thereby improves control performance. Simulated results show open-loop convergence of y//e(kT) to y(kT) for J equals 10.