The paper is concerned with both iterative learningcontrol (ILC) and identification of continuous-time systems based on sampled I/O data in the presence of measurement noise. First, we propose a new ILC method which achieves tracking for uncertain plants by iteration of trials. The distinguished feature of this method is that (i) the leaning law works in a finite dimensional parameter space rather than the infinite dimensional input space and (ii) it takes account of noise reduction by using I/O data of all past trials efficiently. Second, it is shown how to estimate parameters of a class of linear continuous-time systems based on the proposed ILC method in noisy circumstances. Its effectiveness is demonstrated through numerical examples.
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