DIGITAL ADAPTIVE FEEDFORWARD/FEEDBAСK CONTROLLER FOR AUTOTRACKING RADAR

Authors

  • L. S. Zhiteckii International Centre of Information Technologies & Systems, Kyiv, Ukraine
  • O. A. Sushchenko National Aviation University

DOI:

https://doi.org/10.18372/1990-5548.52.11865

Keywords:

Adaptive system, autotracking radar, digital controller, control law, feedback, feedforward.

Abstract

The problem of designing a perfect adaptive control law for controlling the nonminimum phase discrete-time tracking system, which represents an aircraft autotracking radar, obtained by sampling a continuous-time system is proposed. The main goal is to achieve high performance indices of this class of systems. A new adaptive digital controller consisting of the adaptive feedback in conjunction with adaptive
indirect feedforward circuits is proposed. Obtained results can be useful for autotracking radar design.

Author Biographies

L. S. Zhiteckii, International Centre of Information Technologies & Systems, Kyiv, Ukraine

Aircraft Control Systems Department

Candidate of Science (Engineering). Professor

O. A. Sushchenko, National Aviation University

Aircraft Control Systems Department

Doctor of Engineering Science. Professor.

References

V. N. Azarskov, L. N. Blokhin, and L. S. Zhiteckij, Methodology of designing optimal stochastic stabilization systems. Kyiv, NAU, 2006, 437 p. (in

Russian).

M. Tomizuka, “On the design of digital tracking controllers,” Transactions of the ASME. Journal of Dynamic Systems Measurement and control, 1993, vol. 115, pp. 412–418.

L. S. Zhiteckij, “On a problem of synthesis of a program control systems containing a digital computer,” Avtomatika, 1964, no. 5, pp. 36–42 (in Ukrainian).

K. J. Astrom, P. Hagander, and J. Sternbby, “Zeros of sampled system,” Automatica, 1984, vol. 20, issue 1, pp. 31–38.

L. S. Zhiteckij, “On invariance of combined sampled-data systems with program control,” Avtomatika, 1967, no. 6, pp. 83–85 (in Ukrainian).

E. Gross and M. Tomizuka, “Experimental flexible beam tip tracking control with a truncated series approximation to uncancelable inverse dynamics,” IEEE Trans. Control System Technology, 1994, vol. 2, no 4, pp. 382–391.

C. Samson, “An adaptive LQ controller for non-minimum phase systems,” International Journal of Control, 1982, vol. 35, no. 1, pp. 1–28.

I. D. Landau, R. Lozano, and M. M’Saad, Adaptive control. London, Springer, 1997, 562 p.

V. N. Azarskov, L. N. Blokhin, L. S. Zhiteckij and others. Robust methods of estimation, identification and adaptive control. Kyiv, NAU, 2004, 500 p. (in Russian).

C. Wen, D. J. Hill, “Global boundedness of discrete-time adaptive control just using projection.” Automatica, 1992, vol. 28, no. 6, pp. 1143–1157.

L. S. Zhiteckij, “Robust control strategy design for motion control of non-minimum phase systems under

parametric uncertainty,” Proc. IFAC Workshop “Motion Control”, Munich, Germany, 1995, pp. 304–311.

Downloads

Issue

Vol. 2 No. 52 (2017)

Section

AUTOMATIC CONTROL SYSTEMS

License

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).