Comments on "Parameter information content of measurable signals in direct adaptive control" [with reply]

The commenter shows that the parameter adjustment procedure proposed by J.M. Krause and P.P. Khargonekar (see ibid., vol.AC-32, p.802-10, Sep. 1987) reduces, after sufficiently exciting signals have been obtained, to a standard least-squares algorithm with a linear time-invariant filter. In reply, Krause and Khargonekar acknowledge that the commenter has demonstrated a valid and different interpretation of their two-stage adjustment law.<
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