LTV Model Reductions with Upper Error Bounds, Report no. LiTH-ISY-R-2725
نویسنده
چکیده
An approach for computing upper error bounds for reduced-order models of linear time-varying systems is presented. It is based on a transformation technique of the Hankel singular values using positive-real, odd incremented functions. By applying such time-varying functions, the singular values to be removed can be forced to become equal and constant, so that they can be reduced in one step. Two variations of this method are proposed: one for finite-time horizons and the other for infinite-time problems.
منابع مشابه
Robust finite-frequency H2 analysis of uncertain systems, Report no. LiTH-ISY-R-3011
In many applications, design or analysis is performed over a nite-frequency range of interest. The importance of the H2/robust H2 norm highlights the necessity of computing this norm accordingly. This paper provides di erent methods for computing upper bounds on the robust nite-frequency H2 norm for systems with structured uncertainties. An application of the robust nite-frequency H2 norm for a...
متن کاملControllers for Amplitude Limited Model Error Models, Report no. LiTH-ISY-R-2719
In this paper, systems where information about model accuracy is contained in a model error model are considered. The validity of such a model is typically restricted to input signals that are limited in amplitude. It is then natural to require the same amplitude restriction when designing controllers. The resulting implications for controller design are investigated in both the continuous and ...
متن کاملA framework for analysis of observer-based ILC, Report no. LiTH-ISY-R-2918
A framework for Iterative Learning Control (ILC) is proposed for the situation when the ILC algorithm is based on an estimate of the controlled variable obtained from an observer-based estimation procedure. Under the assumption that the ILC input converges to a bounded signal, a general expression for the asymptotic error of the controlled variable is given. The asymptotic error is then exempli...
متن کاملRobust finite-frequency H2 analysis, Report no. LiTH-ISY-R-2973
Finite-frequency H2 analysis is relevant to a number of problems in which a priori information is available on the frequency domain of interest. This paper addresses the problem of analyzing robust finite-frequency H2 performance of systems with structured uncertainties. An upper bound on this measure is provided by exploiting convex optimization tools for robustness analysis and the notion of ...
متن کاملApproaches to Identification of Nonlinear Systems, Report no. LiTH-ISY-R-2991
System Identi cation for linear systems and models is a well established and mature topic. Identifying nonlinear models is a much more rich and demanding problem area. In this presentation some major approaches and concepts for that are outlined
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006