Combined adaptive control with new adaptation laws

M. P.R.V. Rao, J. P. Mclaughlin

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    A combination of direct and indirect methods of adaptive control that yielded an improved performance (over its constituent methods) is considered in this paper. This combined method has been recently developed; it was considered that the improvement was due to the use of a new kind of error-called the closed-loop estimation error. Earlier papers on this combined method used a Lyapunov function and developed stable adaptation laws of integral (I) form. Using the same errors, this paper suggests a new Lyapunov function and its associated adaptation laws of proportional plus integral (P + I) form, showing that further improvement in the performance can be obtained. Digital simulation results are presented, indicating that the 'P' term improves the performance in those cases where the 'I' term alone is not adequate.

    Original languageEnglish
    Pages (from-to)145-155
    Number of pages11
    JournalIMA Journal of Mathematical Control and Information
    Issue number2
    Publication statusPublished (in print/issue) - 1995

    Bibliographical note

    Copyright 2010 Elsevier B.V., All rights reserved.


    Dive into the research topics of 'Combined adaptive control with new adaptation laws'. Together they form a unique fingerprint.

    Cite this