Kurum Yazarı "İftar, Altuğ" Bildiri Koleksiyonu İçin Listeleme
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Centralized and Decentralized Robust Servomechanism Problems for Time-delay Systems
İftar, Altuğ (IEEE, 2017)Centralized and decentralized robust servomechanism problems for time-delay systems are considered. Sufficient and necessary conditions for the solvability of these problems are presented. The conditions for the two problems ... -
Comparison of H-infinity and mu-synthesis based flow controllers for high-speed networks with multiple time delays
Ataşlar, Banu; Özbay H; İftar, Altuğ (IEEE, 2001)A flow controller design approach based on mu-synthesis is proposed. The performances of the resulting controllers and the H-infinity controllers designed based on an approach proposed earlier, are compared. -
Comparison of H? and µ-synthesis based flow controllers for high-speed networks with multiple time delays
Ataşlar, Banu; Özbay, H.; İftar, Altuğ (2001)A flow controller design approach based on µ-synthesis is proposed. The performances of the resulting controllers and the H? controllers designed based on an approach proposed earlier, are compared. -
Controller Design for Neutral Time-Delay Systems by Nonsmooth Optimization
Özer, S. Mert; İftar, Altuğ (Elsevier Science BV, 2016)Strong stabilization of linear time-invariant neutral time-delay systems is considered. A controller design algorithm based on a nonsmooth optimization approach is proposed. An initialization procedure for the non-convex ... -
Controller design to enforce boundedness, liveness and reversibility in Petri nets
Aybar, Aydın; İftar, Altuğ (Pergamon-Elsevier Science LTD, 2003)Supervisory controller design to enforce boundedness, reversibility, and liveness in ordinary Petri nets with weighted arcs is considered. Algorithms are presented to design a controller to enforce these properties ... -
Controller design to enforce boundedness, liveness, and reversibility in Petri nets
Aybar, Aydın; İftar, Altuğ (IFAC Secretariat, 2003)Supervisory controller design to enforce bouudedness. reversibility, and liveness in ordinary Petri nets with weighted arcs is considered. Algorithms are presented to design a controller to enforce these properties ... -
Controller Design Using Extension for Neutral Distributed-time-delay Systems
İftar, Altuğ (IEEE, 2017)Extension principle is first defined for neutral distributed-time-delay systems. Necessary and sufficient conditions for one such system being an extension of the other are then presented. Contractibility of controllers ... -
Conversion of rate based flow control algorithms to window based algorithms
Yelbasi, O; İftar, Altuğ (IEEE, 2004)The conversion of rate based flow control algorithms used in high-speed data communication networks to window (credit) based algorithms is considered. A rate based robust flow controller, designed using the H-infinity ... -
A decentralized control approach for transportation networks
Ataşlar, Banu; İftar, Altuğ (Pergamon Press LTD, 1999)A decentralized control approach for transportation networks to prevent traffic congestion is presented. The approach was developed by considering flow control and routing control together. The control algorithm is based ... -
Decentralized control design for interconnected discrete-event systems
Aybar, Aydın; İftar, Altuğ (Pergamon-Elsevier Science LTD, 2001)Interconnected discrete-event systems are studied in this paper. Petri nets are used to model these systems. A decentralized controller design approach, based on overlapping decompositions, is described for such systems. ... -
Decentralized controller design by continuous pole placement for commensurate-time-delay systems
Erol, H. Ersin; İftar, Altuğ (IFAC Secretariat, 2014)Decentralized controller design problem for linear time-invariant retarded commensurate-time-delay systems is considered. The continuous pole placement algorithm, which has recently been introduced for static state vector ... -
Decentralized controller design by continuous pole placement for incommensurate-time-delay systems
Erol, H. Ersin; İftar, Altuğ (2015)Decentralized controller design problem for linear time-invariant retarded incom-mensurate-time-delay systems is considered. A design approach based on the decentralized, pole assignment, algorithm, and the continuous pole ... -
Decentralized controller design by continuous pole placement for neutral time-delay systems
Erol, H. Ersin; İftar, Altuğ (SAGE Publications LTD, 2017)The stabilizing decentralized controller design problem for (possibly descriptor-type) linear time-invariant neutral time-delay systems is considered. A design approach, based on the continuous pole placement algorithm and ... -
Decentralized controller design for time-delay systems by optimization
Özer, S. M.; İftar, Altuğ (2015)Decentralized controller design problem for linear time-invariant retarded time-delay systems is considered. Algorithms, based on nonsmooth optimization and decentralized pole assignment, are developed to design decentralized ... -
Decentralized controller design to enforce boundedness, liveness, and reversibility in Petri nets
Aybar, Aydın; İftar, Altuğ (Institute of Electrical and Electronics Engineers Inc., 2003)Decentralized supervisory controller design based on overlapping decompositions to enforce boundedness, liveness, and reversibility is considerered for ordinary Petri nets with weighted arcs. In the proposed approach, the ... -
Decentralized robust control basedon overlapping decompositions
İftar, Altuğ (IFAC Secretariat, 2004)Use of overlapping decompositions in robust decentralized controller design is demonstrated. Using overlapping decompositions and expansions, a robustness bound to account for (i) the neglected interactions between the ... -
Decentralized Robust Control of Infinite-dimensional Systems
İftar, Altuğ (IEEE, 2017)Decentralized robust control of infinite-dimensional systems is considered. A decentralized robust controller design approach for such systems is proposed. In this approach, overlapping decompositions is first used to ... -
Decentralized robust control of infinite-dimensional systems
İftar, Altuğ (Institute of Electrical and Electronics Engineers Inc., 2017)Decentralized robust control of infinite-dimensional systems is considered. A decentralized robust controller design approach for such systems is proposed. In this approach, overlapping decompositions is first used to ... -
Decentralized robust control of systems interconnected over networks
İftar, Altuğ (2013)Due to recent technological developments, systems which are interconnected over networks have become very common. Typically, a number of subsystems may be interconnected by means of an existing network. Furthermore, each ... -
Decentralized robust flow controller design for data-communication networks
İftar, Altuğ (2007)An important problem in the operation of data-communication networks is congestion. A tool which is used to avoid congestion is flow control. A flow controller decides on the rate of messages to be admitted to the network ...