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2007 46th IEEE Conference on Decision and Control最新文献

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Observer gain effect in linear interval observer-based fault detection 基于线性区间观测器的故障检测中的观测器增益效应
2007 46th IEEE Conference on Decision and Control Pub Date : 2010-09-01 DOI: 10.1109/CDC.2007.4434658
J. Meseguer, V. Puig, T. Escobet, R. Sarrate
{"title":"Observer gain effect in linear interval observer-based fault detection","authors":"J. Meseguer, V. Puig, T. Escobet, R. Sarrate","doi":"10.1109/CDC.2007.4434658","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434658","url":null,"abstract":"In case of model uncertainty is located in parameters (interval model), an interval observer has been shown to be a suitable strategy to generate an adaptive threshold to be used in residual evaluation. In interval observer-based fault detection methods, the observer gain plays an important role since it determines the minimum detectable fault for a given type of fault and allows enhancing the observer fault detection properties while diminishing model computational drawbacks (i.e. wrapping effect, computational complexity). In this paper, the effect of the observer gain on the time evolution of the residual sensitivity to a fault is analyzed. Then, using these sensitivity studies, the minimum detectable fault time evolution is established. Thus, three types of faults according their detectability time evolution are introduced: permanently (strongly) detected, non-permanently (weakly) detected or just non-detected. Finally, an example based on a mineral grinding- classification process will be used to illustrate the results derived.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114932803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 80
Convergence results for ant routing algorithms via stochastic approximation and optimization 蚁群路由算法的随机逼近和优化收敛结果
2007 46th IEEE Conference on Decision and Control Pub Date : 2010-04-12 DOI: 10.1145/1755952.1755981
P. Purkayastha, J. Baras
{"title":"Convergence results for ant routing algorithms via stochastic approximation and optimization","authors":"P. Purkayastha, J. Baras","doi":"10.1145/1755952.1755981","DOIUrl":"https://doi.org/10.1145/1755952.1755981","url":null,"abstract":"Ant algorithms\" have been proposed to solve a variety of problems arising in optimization and distributed control. They form a subset of the larger class of \"swarm intelligence\" algorithms. The central idea is that a 'swarm' of relatively simple agents can interact through simple mechanisms and collectively solve complex problems. Instances that exemplify the above idea abound in nature. The abilities of ant colonies to collectively accomplish complex tasks have served as sources of inspiration for the design of \"ant algorithms\". Examples of \"ant algorithms\" are \"ant routing\" algorithms that have been proposed for communication networks. We analyze in this paper an ant-based routing algorithm for packet-switched wireline networks. The algorithm is an attractive multiple path probabilistic routing scheme, that is fully adaptive and distributed. Using methods from adaptive algorithms and stochastic approximation, we show that the evolution of the link delay estimates can be closely tracked by a deterministic ODE system. A study of the equilibrium points of the ODE then gives us the equilibrium behavior of the routing algorithm, in particular, the equilibrium routing probabilities, and mean delays in the links under equilibrium. We also show that the fixed-point equations that the equilibrium probabilities satisfy are actually the necessary and sufficient conditions of an appropriate optimization problem. Simulations supporting the analytical results are provided.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134543271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Keyword 关键字
2007 46th IEEE Conference on Decision and Control Pub Date : 2009-03-01 DOI: 10.1086/599062
M. Leja
{"title":"Keyword","authors":"M. Leja","doi":"10.1086/599062","DOIUrl":"https://doi.org/10.1086/599062","url":null,"abstract":"Which words merit special attention, in isolation from the verbal sequences in which they ordinarily appear? Some obvious candidates stake this claim by virtue of having been made or remade to represent complex concepts or even whole philosophies: “poststructuralism,” “identity,” “discourse,” for example. Others are unassuming, their frequent and commonplace usage obscuring extraordinary accumulated significance. My appreciation for words of the latter type was sharpened when, as a graduate student in the 1980s, I encountered Raymond Williams’s book Culture and Society (1958). The volume tracked changes in the meanings and uses of several words (“industry,” “democracy,” “class,” “art,” “culture”) as a way of mapping “wider changes in life and thought [between 1780 and 1950] to which the changes in language evidently refer.” Williams labeled the words that had taken on significant new meanings “the key words.” In a subsequent volume,","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116410218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Scaling of gain bounds for switched adaptive control with large uncertainties 大不确定性开关自适应控制增益界的缩放
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-17 DOI: 10.1109/CDC.2007.4434330
D. Buchstaller, M. French
{"title":"Scaling of gain bounds for switched adaptive control with large uncertainties","authors":"D. Buchstaller, M. French","doi":"10.1109/CDC.2007.4434330","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434330","url":null,"abstract":"A wide class of MMAC with a finite lp (1 les p les infin) closed loop gain are shown to have an unboundedly increasing lp closed loop gain for a simple set of plants under increasing parametric uncertainty. A modification is proposed which achieves a quadratic closed loop gain function which is independent of the size of the uncertainty set.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"248 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132571383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Stability and transparency analysis of a haptic feedback controller for medical applications 医用触觉反馈控制器的稳定性和透明性分析
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434677
W. Zarrad, P. Poignet, R. Cortesão, O. Company
{"title":"Stability and transparency analysis of a haptic feedback controller for medical applications","authors":"W. Zarrad, P. Poignet, R. Cortesão, O. Company","doi":"10.1109/CDC.2007.4434677","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434677","url":null,"abstract":"This paper presents the performance analysis of a haptic feedback teleoperation system for robotic-assisted surgery. Through a haptic device, the surgeon tele-operates the medical instrument, fixed on a remote robot that may evolve in free space or in contact. In free space, the surgeon feels the motion of the robot. When contact with tissues occurs, an on-line environment stiffness estimation is performed using an extended Kalman filter with robot modeling error compensation and without considering the contact position. The quality of the telepresence will depend on this estimation. Based on the stability and transparency frequency analysis, the estimated parameter is used to tune the teleoperation scheme and to improve telepresence. The improvement is based on the stability of the haptic feedback teleoperation scheme new rearrangement in which we distinguish between voluntary and involuntary operator positions.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129330093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
The S-hull approach to consensus 达成共识的s型船体方法
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434825
Ioannis Lestas, G. Vinnicombe
{"title":"The S-hull approach to consensus","authors":"Ioannis Lestas, G. Vinnicombe","doi":"10.1109/CDC.2007.4434825","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434825","url":null,"abstract":"It is shown in the paper how by introducing interconnection symmetries by use of bidirectional communication, stability of consensus protocols on arbitrary topologies can be guaranteed in a decentralized and scalable way, despite the presence of higher order heterogeneous dynamics. The analysis is centred round the notion of an S-hull a relaxed convex hull in the complex plane. In the case of linear dynamics the certificates derived include, as special cases, passivity and dissipativity approaches, though a wider class of dynamics is allowed by employing convexification arguments. As a corollary, it is shown that in the presence of heterogeneous delays in the relative information (in which case stability is delay dependent) a simple scaling can guaranty stability on an arbitrary topology. The condition becomes necessary and sufficient when the delays are homogeneous. Time domain interpretations are finally discussed for certain formulations of the problem.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129349851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
On convergence conditions for rendezvous 关于交会的收敛条件
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434502
G. Conte, P. Pennesi
{"title":"On convergence conditions for rendezvous","authors":"G. Conte, P. Pennesi","doi":"10.1109/CDC.2007.4434502","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434502","url":null,"abstract":"In this paper we analyze known conditions on control policies, which guarantee convergence in the multi-agent rendezvous problem. We discuss two examples which suggest a way to relax the continuity condition and to extend the class of control policies that may solve the problem. We propose a new, less restrictive condition, which characterizes a class of possibly non-continuous policies that guarantee rendezvous.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134343252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Positivity of kernel functions for systems with communication delay 具有通信延迟的系统核函数的正性
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434664
M. Peet, A. Papachristodoulou
{"title":"Positivity of kernel functions for systems with communication delay","authors":"M. Peet, A. Papachristodoulou","doi":"10.1109/CDC.2007.4434664","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434664","url":null,"abstract":"The purpose of this paper is to provide further results on a method of constructing Lyapunov functionals for infinite-dimensional systems using semideflnite programming. Specifically, we give a necessary and sufficient condition for positivity of a positive integral operator described by a polynomial kernel. We then show how to combine this result with multiplier operators in order to obtain positive composite Lyapunov functionals. These types of functionals are used to prove stability of linear time-delay systems.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129648009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Three mathematical formalisms for discrete time linear feedback systems 离散时间线性反馈系统的三种数学形式
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434609
W. Leithead, E. Ragnoli
{"title":"Three mathematical formalisms for discrete time linear feedback systems","authors":"W. Leithead, E. Ragnoli","doi":"10.1109/CDC.2007.4434609","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434609","url":null,"abstract":"The Georgiou Smith paradox is an inconsistency that occurs when the class of signals of a conventional mathematical formalism for systems theory is extended to double sided signals. In this work we introduce three different mathematical formalisms in order to recover consistency. The final one, the framework using distributions, is proved to be consistent and to be suitable for the analysis of discrete time feedback systems.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"294 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126020017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Delay-dependent stability analysis of linear systems with time-varying delay 时变时滞线性系统的时滞相关稳定性分析
2007 46th IEEE Conference on Decision and Control Pub Date : 2007-12-14 DOI: 10.1109/CDC.2007.4434619
Yassine Ariba, F. Gouaisbaut
{"title":"Delay-dependent stability analysis of linear systems with time-varying delay","authors":"Yassine Ariba, F. Gouaisbaut","doi":"10.1109/CDC.2007.4434619","DOIUrl":"https://doi.org/10.1109/CDC.2007.4434619","url":null,"abstract":"Stability analysis of linear systems with time- varying delay is investigated. In order to highlight the relations between the variation of the delay and the states, redundant equations are introduced to construct a new modeling of the delay system. New types of Lyapunov Krasovskii functionals are then proposed allowing to reduce the conservatism of the stability criterion. Delay dependent stability conditions are then formulated in terms of linear matrix inequalities (LMI). Finally, an example shows the effectiveness of the proposed methodology.","PeriodicalId":300509,"journal":{"name":"2007 46th IEEE Conference on Decision and Control","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128667040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 67
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