摘要:

A characterization of the return-difference matrix properties of optimal linear stationary estimation in singular mode is presented in which the non-singular Kalman problem and the coloured measurement noise problem occur as special cases. Linear least-squares estimators of minimal order are treated for both known state-space models and known separable output covariance models. Return-difference properties of the optimal linear regulator, where the control weighting matrix is singular, are also shown to be the dual of those of the singular estimation solutions.

ISSN:0020-7179    

DOI:10.1080/00207178208922625

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Singular perturbation methods are used to provide a basis for the design of robust set-point tracking systems incorporating error-actuated controllers for plants with explicit actuator dynamics. The conditions are identified under which the common practice of neglecting actuator dynamics is justified in the design of both continuous-time and discrete-time tracking systems.

ISSN:0020-7179    

DOI:10.1080/00207178208922626

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Two new methods to test for the existence of non-essential singularities of the second kind on the distinguished boundary of the unit polydisk, are presented. If such singularities exist, they can also be explicitly found. Both methods are shown to be much simpler, computationally, than previously known methods.

ISSN:0020-7179    

DOI:10.1080/00207178208922627

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor