It is shown that there is an inconsistency in the derivation of the adaptive estimation equations by R. Rishel and L. Harris (see ibid., vol.AC-31, p.1165-70, Dec. 1986). An extra condition that is required is noted.<
Published in:
Automatic Control, IEEE Transactions on
(Volume:34
,
Issue:
3
)
Date of Publication: March 1989