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The manifestation of radix2 was a highlight in the design of efficient FFT hardware architectures. Afterward, radix2 was extended to R2MDC and R2SDF However, radix2 was only planned for (SDF) single-path delay feedback structures, other than not intended for feed-forward ones, also called (MDC) multi-path delay Commutator. In this paper, the design of R2MDC (Radix2 Multipath Delay Commutator and R2SDF...
Material or fluid transportation is a commonly encountered phenomenon in industrial applications, generating variable time delay that makes the design of feedback control loops more difficult. This paper investigates the applicability of MPC (Model Predictive Control) strategies to this type of processes. The experimental setup consists of a heated tank, of which the outlet temperature (measured at...
Networked control systems (NCS) are an active area of research within control and estimation. Networked control systems have many advantages by comparison with the traditional ones. The fault detection problem is studied in this paper for a class of linear networked control systems (NCS) with communication delays. Aim is to generate residual signals which, in the fault free case, are supposed to be...
This contribution deals with design of controllers for integrating processes with time delay. In contrast to many other methods, the proposed method is not based on the time delay approximation. A control structure combining standard 1DOF and 2DOF control structures is considered. The control design is performed in the RMS ring of retarded quasipolynomial (RQ) meromorphic functions - an algebraic...
The paper proposes a method for feedback stability evaluation for discrete-time, linear time-varying control systems. It is assumed that the time-varying system can be described by linear matrices operators, equivalent to general discrete-time, time-varying state space model with nonzero input-output delay. The main used tools are Bode diagrams approximated for time-varying systems, using power spectral...
It is well-known that the interconnection of two or more dynamical systems leads to an increasing complexity of the overall system's behavior due to the effects induced by the emerging dynamics (in the presence or not of feedback loops) in strong interactions (sensing, communication) with the environment changes. One of the major problems appearing in such interconnection schemes is related to the...
This work approaches the problem of robust control for first-order plus time delay plants. The goal is investigate the potentials of a nonlinear/hybrid compensator previously developed by authors, referred to as the PI+CI compensator, in the control of a process with significant parametric uncertainty. To this end, the design of PI+CI has been made in two steps: first, a base robust PI compensator...
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