Accession Number : ADA019765

Title :   Disturbance Localization in Linear Systems with Simultaneous Decoupling, Pole Assignment, or Decoupling,

Corporate Author : WASHINGTON UNIV ST LOUIS MO DEPT OF SYSTEMS SCIENCE AND MATHEMATICS

Personal Author(s) : Chang,Man-Feng ; Rhodes,Ian B.

Report Date : DEC 1973

Pagination or Media Count : 7

Abstract : For a constant linear dynamic system with unmeasurable disturbances, geometric necessary and sufficient conditions are derived for the existence of a state-feedback controller that localizes the disturbances and simultaneously assigns the closed-loop poles or decouples the closed-loop system. These conditions are simple, intuitively appealing, and closely related to the known necessary and sufficient conditions for the separate problems to be solvable alone. Furthermore, it is shown that for these combined problems no additional flexibility is afforded by using dynamic compensation instead of static compensation except for the combined problem of disturbance localization and decoupling where the additional flexibility is derived from that for the decoupling problem alone. Under a standard rank assumption, it is established that the combined problem of simultaneously localizing the disturbances, assigning the poles and decoupling the system has no solution. (Author)

Descriptors :   *Feedback, *Linear systems, *Closed loop systems, *Control systems, *Decoupling, Coupling(Interaction), Dynamics, Compensation, Disturbances, Control theory

Subject Categories : Electrical and Electronic Equipment
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE