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TsAGI Science Journal

Publication de 6  numéros par an

ISSN Imprimer: 1948-2590

ISSN En ligne: 1948-2604

SOME DYNAMIC PROPERTIES OF DIGITAL MULTIRATE CONTROL SYSTEMS

Volume 41, Numéro 5, 2010, pp. 579-591
DOI: 10.1615/TsAGISciJ.v41.i5.70
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RÉSUMÉ

Dynamic properties of a digital control system are analyzed, taking into account its multirateness, i.e., usage of different sampling rates to update signals. Widely used cases of multirateness are considered, namely, two digital systems of different sample rates linked by a data bus, usage of different sample rates for different signals inside a control system computer, and usage of different algorithms for one signal update in different sample times. The effect of these factors on transfer functions and frequency response characteristics is evaluated for typical elements of a control system, i.e., gain, integrator, and aperiodic filter. One channel and redundant architectures are considered. Stability domains are calculated for a triplex multirate control system.

RÉFÉRENCES
  1. Bazhenov, S. G. and Shelukhin, Yu. F., Dynami of Digital Reserved Asynchronous Multirate Control Systems of Aircrafts.

  2. Bazhenov, S. G. and Shelukhin, Yu. F., Effect of Data Equalization in Digital Redundant Control System on on Dynamics of Standard Elements.

  3. Didenko, Yu. I., Kushnir, P. V., and Shelukhin, Yu. F., Application of State Space Method to the Analysis of Digital Control Systems.

  4. Ilyasov, B. G., Saitova, G. A., and Khalikova, E. A., Analysis of Stability Margin of Homogeneous Multiply Connected Control Systems.

  5. Kushnir, P. V. and Shelukhin, Yu. F., Investigation of Astatic Reserved Digital Control Systems of Aircraft with Asynchronous Calculators.

  6. Tsypkin, Ya. Z., Theory of Impulse Systems.

  7. Tu, Yu. T., Digital and Impulse Systems of Automated Control.

CITÉ PAR
  1. Hofsäß Hannes, Holzapfel Florian, Analysis of Controller Errors in an Asynchronous, Redundant Flight Control System, AIAA AVIATION 2022 Forum, 2022. Crossref

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