Design methods: Specification of control systems

Jiann Shiou Yang, William S. Levine

Research output: Chapter in Book/Report/Conference proceedingChapter


Generally, control system specifications can be divided into two categories, performance specifications and robustness specifications. Although the boundaries between the two can be fuzzy, the performance specifications describe the desired response of the nominal system to command inputs. The robustness specifications limit the degradation in performance due to variations in the system and disturbances. Section 9.1.2 of this chapter describes the classical performance specifications for single-input single-output (SISO) linear time-invariant (LTI) systems. This is followed by a discussion of the classical robustness specifications for SISO LTI systems. The fourth section gives some miscellaneous classical specifications. The fifth section describes performance specifications that are unique to multi-input multi-output (MIMO) systems. This is followed by a section on robustness specifications for MIMO systems. The final section contains conclusions.

Original languageEnglish (US)
Title of host publicationThe Control Handbook
Subtitle of host publicationControl System Fundamentals, Second Edition
PublisherCRC Press
ISBN (Electronic)9781420073638
ISBN (Print)9781420073621
StatePublished - Jan 1 2017


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