J. Lehnert et. al. ; We demonstrate that time-delayed feedback control can be improved by adaptively tuning the feedback gain. This adaptive controller is applied to the stabilization of an unstable fixed point and an unstable periodic orbit embedded in a chaotic attractor. The adaptation algorithm is constructed using the speed-gradient method of control theory. Our computer simulations show that the adaptation algorithm can find an appropriate value of the feedback gain for single and multiple delays. Furthermore, we show that our method is robust to noise and different initial conditions. ; This work was supported by Deutsche Forschungsgemeinschaft in the framework of SFB 910. J. Lehnert, P. Ho¨ vel, and E. Scho¨ll acknowledge the support by the German-Russian Interdisciplinary Science Center (G-RISC) funded by the German Federal Foreign Office via the German Academic Exchange Service (DAAD). P. Ho¨vel also acknowledges the support by BMBF under the Grant No. 01GQ1001B. P. Guzenko thanks the DAAD program “Michail Lomonosov (B)” for the support of this work. A. L. Fradkov acknowledges the support of Russian Federal Program “Cadres” (goscontracts 16.740.11.0042, 14.740.11.0942) and RFBR (project 11-08-01218). ; Peer reviewed


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    Title :

    Adaptive tuning of feedback gain in time-delayed feedback control


    Contributors:

    Publication date :

    2011-01-01


    Remarks:

    1089-7682



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    DDC:    629



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