Optimal placement and gains of sensors and actuators for feedback control

K. Xu, P. Warnitchai, T. Igusa

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


This paper presents an optimal design method for placement and gains of actuators and sensors in output feedback control systems. A quadratic performance function is minimized using nonlinear programming. The new contribution is the derivation of analytical expressions for the gradients of the performance function. These gradients are important because they can be efficiently computed and do not suffer from errors associated with finite differences. This makes the method suitable for systems with a large number of actuators. Several numerical studies are performed for a two-dimensional structure. In all cases, even with 100 optimization variables, convergence is rapid.

Original languageEnglish (US)
Pages (from-to)929-934
Number of pages6
JournalJournal of Guidance, Control, and Dynamics
Issue number5
StatePublished - Sep 1994
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics


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