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Memoryless Input-Output Encoding for Networked Systems with Unknown Constant Time Delay

Tilemachos Matiakis, Sandra Hirche
2006 2006 IEEE International Conference on Control Applications  
Based on a novel delayindependent input-output approach the problem of unknown constant time delay is addressed in this paper.  ...  Communication time delay in a networked control system (NCS) degrades the performance and may lead to instability.  ...  ACKNOWLEDGMENTS The authors are grateful to Martin Buss for his helpful advice and support. The helpful comments of the anonymous reviewers are appreciated.  ... 
doi:10.1109/cca.2006.286130 fatcat:yqu75kddpzbhnj4xxdczhgx6he

Memoryless input-output encoding for networked systems with unknown constant time delay

Tilemachos Matiakis, Sandra Hirche
2006 2006 IEEE Conference on Computer Aided Control System Design, 2006 IEEE International Conference on Control Applications, 2006 IEEE International Symposium on Intelligent Control  
Based on a novel delayindependent input-output approach the problem of unknown constant time delay is addressed in this paper.  ...  Communication time delay in a networked control system (NCS) degrades the performance and may lead to instability.  ...  ACKNOWLEDGMENTS The authors are grateful to Martin Buss for his helpful advice and support. The helpful comments of the anonymous reviewers are appreciated.  ... 
doi:10.1109/cacsd-cca-isic.2006.4776898 fatcat:zjjoxiqk7vcqdgeef55obtcmhq

Networked Control Systems with Time-Varying Delay – Stability through Input-Output Transformation (Netzwerkregelungssysteme mit variabler Totzeit – Stabilität durch Eingangs-Ausgangs-Transformation)

Tilemachos Matiakis, Sandra Hirche, Martin Buss
2008 at - Automatisierungstechnik  
In this article we propose a novel approach for timevarying delay applicable to the class of input-feedforward-output-feedback-passive (IF-OFP) systems.  ...  The proposed approach is based on an input-output transformation; instead of direct communication a linear transformation of the plant and controller input and output is sent through the communication  ...  Society for the Promotion of Science (JSPS) by a Postdoctoral Fellowship for Foreign Researchers granted to the second author.  ... 
doi:10.1524/auto.2008.0683 fatcat:3uosyg5wgrgxvbj7bfn5a5uqpm

Passivity indices and passivation of systems with application to systems with input/output delay

M. Xia, P. J. Antsaklis, V. Gupta
2014 53rd IEEE Conference on Decision and Control  
A passivation method to passivate a given system by using an input-output transformation matrix is introduced.  ...  Further, this transformation matrix allows the use of a non-passive system as a controller to guarantee the passivity and stability of a feedback configuration.  ...  The system Σ 0 can also be used as a controller to stabilize and passivate another plant. As an application, we focus on the case when system G is a stable linear system with an input/output delay.  ... 
doi:10.1109/cdc.2014.7039477 dblp:conf/cdc/XiaAG14 fatcat:uoogqp3ywrajtc7wnmxfahb7g4

Input/Output Devices and Interaction Techniques [chapter]

Daniel Wigdor
2014 Computing Handbook, Third Edition  
However, any sensed information about physical properties of people, places, or things can serve as input to computer systems.  ...  In selecting an interaction device and technique for each task in a human-computer interface, simply making an optimal choice for each task individually may lead to a poor overall design, with too many  ...  Latency is the end-to-end delay between the user's physical movement, sensing this, and providing the ultimate system feedback to the user.  ... 
doi:10.1201/b16812-25 fatcat:qnefemgrbfa6bbqlsvyxxlqbju

The SLH framework for modeling quantum input-output networks

Joshua Combes, Joseph Kerckhoff, Mohan Sarovar
2017 Advances in Physics: X  
Here we review recent progress in theory and experiment related to such quantum input-output networks, with a focus on the SLH framework, a powerful modeling framework for networked quantum systems that  ...  In addition to summarizing major results and recent literature, we discuss the potential applications and limitations of the SLH framework and quantum input-output networks, with the intention of providing  ...  ACKNOWLEDGMENTS We gratefully acknowledge useful exchanges, on several topics, with (in alphabetical order): Ben Baragiola  ... 
doi:10.1080/23746149.2017.1343097 fatcat:4rwllprcb5bqphjxkipimjyrqy

Interpolation-Based Parameterized Model Order Reduction of Delayed Systems

Francesco Ferranti, Michel Nakhla, Giulio Antonini, Tom Dhaene, Luc Knockaert, Albert E. Ruehli
2012 IEEE transactions on microwave theory and techniques  
We propose a novel PMOR method for neutral delayed differential systems, which is based on an efficient and reliable combination of univariate model order reduction methods, a procedure to find scaling  ...  Efficient performing of these design activities calls for parameterized model order reduction (PMOR) methods, which are able to reduce large systems of equations with respect to frequency and other design  ...  of the proposed algorithm with respect to [32] , where the interpolation process were only applied to the ROMs treated as input-output systems.  ... 
doi:10.1109/tmtt.2011.2181858 fatcat:2tc4hvliurbavdvfdmfwk23w2y

Spiking input-output relation for general biophysical neuron models [article]

Daniel Soudry, Ron Meir
2014 arXiv   pre-print
Then we analytically derive the input-output relation of such neuronal models, relating input spike trains to output spikes based on known biophysical properties.  ...  These results are guaranteed to hold, given a few generic assumptions, for any stochastic biophysical neuron model (with an arbitrary number of slow kinetic processes) under general sparse stimulation.  ...  Acknowledgments The authors are grateful to Y. Elhanati, A. Gal and S. Marom for many insightful discussions and for reviewing parts of this manuscript.  ... 
arXiv:1207.6251v4 fatcat:h7a2dopcivgmdec6dab4kqma6y

A distributed controller approach for delay-independent stability of networked control systems

Sandra Hirche, Tilemachos Matiakis, Martin Buss
2009 Automatica  
The performance advantages in terms of sensitivity to time delay and steady state error are discussed in comparison with alternative delay-independent small gain type approaches.  ...  Simulations verify the superiority of the proposed approach to an LQR controller for zero time delay without the proposed transformation and to a delay-independent small gain based controller.  ...  Acknowledgements This work was supported in part by the German Research Foundation (DFG) within the Priority Programme SPP 1305 "Regelungstheorie digital vernetzter dynamischer Systeme".  ... 
doi:10.1016/j.automatica.2009.04.016 fatcat:22xs5z4revcgpn3i4bgueuqfhi

Identification and Estimation of Quantum Linear Input-Output Systems [article]

Matthew Levitt, Mădălin Guţă, Theodore Kypraios
2017 arXiv   pre-print
The system identification problem is to estimate dynamical parameters from the output data, obtained by performing measurements on the output fields.  ...  (2) How can we construct a system realisation from sufficient input-output data? (3) How well can we estimate the parameters governing the dynamics?  ...  We also present techniques enabling one to find a physical realisation of the system from the input-output data.  ... 
arXiv:1712.08531v1 fatcat:o6yyswdqkjdinnhud3ftqybuxm

Threads and input/output in the synthesis kernal

H. Massalin, C. Pu
1989 Proceedings of the twelfth ACM symposium on Operating systems principles - SOSP '89  
Their combination results in significant performance improvement over tra.dit,ional operating system implementations. Using hardware and software emulating a.  ...  SUN 3/100 running SUNOS, Synt,hesis achieves several times to several dozen t.imes speedup for UNIX kernel calls and context switch times of 21 microseconds or faster.  ...  Finally, very specid tha,nks go to John Ousterhout.. our "shepherd" SOSP program comrnittetr member, who helpecl shape both the style and the content of this paper.  ... 
doi:10.1145/74850.74869 dblp:conf/sosp/MassalinP89 fatcat:knf4smdtvfdqlhok62j3np2o2a

Threads and input/output in the synthesis kernal

H. Massalin, C. Pu
1989 ACM SIGOPS Operating Systems Review  
Their combination results in significant performance improvement over tra.dit,ional operating system implementations. Using hardware and software emulating a.  ...  SUN 3/100 running SUNOS, Synt,hesis achieves several times to several dozen t.imes speedup for UNIX kernel calls and context switch times of 21 microseconds or faster.  ...  Finally, very specid tha,nks go to John Ousterhout.. our "shepherd" SOSP program comrnittetr member, who helpecl shape both the style and the content of this paper.  ... 
doi:10.1145/74851.74869 fatcat:pyo57fm7sjfbvkn7izprvhwizq

A Passive Online Technique for Learning Hybrid Automata from Input/Output Traces [article]

Iman Saberi, Fathiyeh Faghih, Farzad Sobhi Bavil
2021 arXiv   pre-print
Our approach is passive, meaning that it does not need interaction with the system during automata synthesis from the logged traces; and online, which means that each input/output trace is used only once  ...  One type of the resulting artifact of this process for cyber-physical systems is hybrid automata.  ...  The authors in [16] have proved that the problem of finding the smallest automata based on a given dataset is NP-complete, and later, it was demonstrated that this is an NP-hard problem [17] .  ... 
arXiv:2101.07053v1 fatcat:jawrk4wttjgqjmgm6aovpswkuq

Reasoning about Input-Output Modeling of Dynamical Systems [chapter]

Matthew Easley, Elizabeth Bradley
1999 Lecture Notes in Computer Science  
The goal of input-output modeling is to apply a test input to a system, analyze the results, and learn something useful from the causeeffect pair.  ...  Any automated modeling tool that takes this approach must be able to reason effectively about sensors and actuators and their interactions with the target system.  ...  Acknowledgments: Apollo Hogan, Joe Iwanski, Brian LaMacchia, and Reinhard Stolle also contributed code and/or ideas to this project.  ... 
doi:10.1007/3-540-48412-4_29 fatcat:3yhoabbo3vdeppnbcv2dj3wiia

Transparent Time-Delayed Bilateral Teleoperation Using Wave Variables

A. Aziminejad, M. Tavakoli, R.V. Patel, M. Moallem
2008 IEEE Transactions on Control Systems Technology  
An existing approach based on the wave transformation technique can make a two-channel teleoperation system insensitive to time delays by making the time-delayed communication channel passive.  ...  Besides stability, a high degree of transparency is also an essential requirement in order to enable operators to safely and precisely perform bilateral teleoperation tasks.  ...  The input/output arrangement in (17) and (18) is due to the fact that the input/output relationship for the communication channel of the proposed 4CH architecture corresponds to an "inverse hybrid"  ... 
doi:10.1109/tcst.2007.908222 fatcat:n7vrhggbzvafvbdxx65m77aseu
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