Accession Number : AD0770102

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

Corporate Author : WASHINGTON UNIV ST LOUIS MO CONTROL SYSTEMS SCIENCE AND ENGINEERING

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

Report Date : 26 APR 1973

Pagination or Media Count : 22

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. Under a standard dimensionality 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 :   *Control theory, *Linear systems, Feedback, Set theory, Complex numbers, Theorems

Subject Categories : Theoretical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE