LQ Regulator of Neutral Systems by Memoryless Feedback

Robust Stability of Inverse LQ Regulator for Neutral Systems with Time-Varying Delay

A method to construct an inverse LQ regulator of neutral systems with time-varying delay is known. Using it, the feedback gain is calculated with a solution of a finite dimensional LMI, and the feedback law is implemented without real time integral operation. In this paper, it is shown that the regulator obtained by the above method has good robustness property against some class of static nonl...

State Nullification by Memoryless Output Feedback

We examine linear single-input single-output finite-dimensional systems. It is shown that a continuous time controllable and observable system can be nullified utilizing periodic sampling of the output with time-varying linear feedback. Almost any sampling rate can be used. The result relies on a characterization of linear output feedback nullification of discrete time observable and controllab...

Generic Eigenvalue Assignability by Real Memoryless Output Feedback Made Simple

Vss Error Feedback Regulator for Linear Systems

This paper focuses on the design of an error feedback sliding mode regulator able to achieve the asymptotic tracking of a reference trajectory for linear systems. It is assumed that the reference trajectory is generated by means of neutrally stable unforced systems. The solution conditions are derived for linear systems presented in general, Regular and Block controllable forms. Copyright © 200...

On the LQ feedback formulation of H∞ Output Feedback Control

It is well-known that using the standard completion of the squares (CoS) formula for the LQ regulator problem, the H∞ controller derivations and associated H∞ controller existence conditions can be directly obtained. In standard theory for general H∞ output-feedback control and in the associated software, certain preliminary “loop-shifting” transformations are needed which it turns out add unne...