Computational methods for MIMO flat linear systems: Flat output characterization, test and tracking control

Sze Zheng Yong, Brian Paden, Emilio Frazzoli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


This paper is concerned with the study of flat outputs for multiple-input-multiple-output (MIMO) controllable linear time-invariant discrete- and continuous-time systems in state-space representation. Leveraging the equivalence of flatness to an estimation-theoretic system property known as strong observability, a quick computational test is developed for ascertaining if an output candidate is flat and the subspace of flat outputs can be constructively characterized. Moreover, we propose a computational method to find differentially (continuous-time), as well as non-causal and causal difference (discrete-time) flat outputs via a system transformation into a special control canonical form. Finally, design principles for flatness-based trajectory planning and tracking control for discrete-time systems are presented, which to our best knowledge, have yet to be successfully demonstrated.

Original languageEnglish (US)
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages7
ISBN (Electronic)9781479986842
StatePublished - Jul 28 2015
Externally publishedYes
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Other2015 American Control Conference, ACC 2015
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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