A computational algorithm for the Full Information H control problem for multi-delayed LTI systems is derived. The algorithm is based on a new general operator approach in spectral domain developed recently for finite-dimensional LTI plants. A simplicity of spectral operations and explicit formulas for computation make it possible to generalize it to infinite-dimensional plants. In this paper, ...

Based on new definitions of “control zeros” and minimum phase property for possibly nonsquare LTI MIMO discretetime systems, generalizations of perfect regulation and perfect filtering are presented both for polynomial matrix and state space models. Consequently, general equivalence results are announced for multi-step and single-step optimal controls as well as for maximumaccuracy and maximum-...

In this paper, the problem of asymptotically stabilizing switched systems consisting of second-order LTI subsystems is studied and solved. In a previous paper, the stabilization problem of switched systems consisting of subsystems with unstable foci was addressed. This paper extends the method therein to the stabilization of switched systems consisting of general second-order LTI subsystems. Ne...

This paper is concerned with the stabilization of LTI/LPV time delay systems with time varying delays using LTI and LPV state-feedback controllers. First, a stability test with guaranteed input/output L2 performance is provided in terms of parameter dependent LMIs. The problem of designing both instantaneous and exact-memory state-feedback control laws is solved. The results are then extended t...

This paper presents a low complexity architecture for a linear periodically time varying (LPTV) filter. This architecture is based on multi-input multi-output(MIMO) representation of LPTV filters. The input signal is divided into blocks and parallel processing is incorporated, there by considerably reducing the effective input sampling rate. A single multiplier can be shared for each linear tim...

Daedalus MASE (Mission Assessment through Simulation Exercise) is an open-source package of scientific analysis tools aimed at research in the Lower Thermosphere-Ionosphere (LTI). It was created with purpose to assess performance and demonstrate closure mission objectives Daedalus, a concept targeting perform in-situ measurements LTI. However, its successful usage as mission-simulator toolset, ...

Agroforestry has gained increasing attention as a sustainable land use mode to ensure food security, mitigate global climate change, and improve farmers’ livelihoods. Likewise, agroforestry plays key role in alleviating poverty, mitigating change achieving the Sustainable Development Goals (SDGs) China. Lanxangia tsaoko, typical species Nujiang Prefecture, vital improving After years of develop...

The notion of path-complete positivity is introduced as a way to generalize the property of positivity from one LTI system to a family of switched LTI systems whose switching rule is constrained by a finite automaton. The generalization builds upon the analogy between stability and positivity, the former referring to the contraction of a norm, the latter referring to the contraction of a cone (...

We consider a multiobjective robust controller synthesis problem for an LTI system subject to structured perturbations. Our design speciications include robust stability, robust performance (H 2-norm) bounds and time-domain bounds (output and command input peak). We derive suucient conditions, based on a single quadratic Lyapunov function, for the existence of an LTI controller such that the cl...

Considering a continuous time LTI system, with impulse response hc t , the uniformly spaced samples hc nT can be identified by using an impulse train input with an arbitrarily small rate 1/NT and sampling the system output with an arbitrarily small rate 1/MT, provided M and N to be coprime for any chosen time spacing T. It is shown that different LTI filters can be identified using the sparse c...