{"title":"Constrained consensus for bargaining in dynamic coalitional TU games","authors":"A. Nedić, D. Bauso","doi":"10.1109/CDC.2011.6160508","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160508","url":null,"abstract":"We consider a sequence of transferable utility (TU) games where, at each time, the characteristic function is a random vector with realizations restricted to some set of values. We assume that the players in the game interact only with their neighbors, where the neighbors may vary over time. The main contributions of the paper are the definition of a robust (coalitional) TU game and the development of a distributed bargaining protocol. We prove the convergence with probability 1 of the bargaining protocol to a random allocation that lies in the core of the robust game under some mild conditions on the players' communication graphs.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129526020","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}
{"title":"New robotic motion generation using digital convolution with physical system limitation","authors":"Geon Lee, B. Yi, Doik Kim, Youngjin Choi","doi":"10.1109/CDC.2011.6160276","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160276","url":null,"abstract":"This paper proposes a novel trajectory generation method considering physical system limitations such as maximum velocity, acceleration, and jerk. Also, the trajectory generation method uses a digital convolution for reducing computational load in robotic motion applications. The method to be proposed has several advantages; first, a continuously differentiable trajectory is simply obtained by applying successive convolution operations. Second, a resultant trajectory is always generated satisfying the given physical system limits. Third, the suggested method has low computational load thanks to recursive form of convolution operation. The effectiveness of the proposed method is shown through numerical simulations.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129567133","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}
{"title":"Distributed H∞ optimal control of networked uncertain nonlinear Euler-Lagrange systems with switching communication network topologies","authors":"A. Mehrabian, S. Tafazoli, K. Khorasani","doi":"10.1109/CDC.2011.6160772","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160772","url":null,"abstract":"This paper is concerned with the design of distributed state synchronization and trajectory tracking control laws for nonlinear Euler-Lagrange (EL) systems in presence of parameter uncertainty and external disturbances with fixed and switching communication network topologies. Specifically, H∞ optimal control techniques are employed to formally design controllers which address the state synchronization and trajectory tracking of a team of multi-agent nonlinear EL systems while the agents have access to only local information. It is shown that the state synchronization (or consensus) protocol and trajectory tracking controllers can be formally derived by employing our proposed analysis. In addition, we formally show that our proposed distributed state synchronization and tracking control algorithms for EL systems is input-to-state stable (ISS) where the input is taken as parameter uncertainty as well as external disturbances. Our results are obtained for both fixed and switching communication network topologies. Simulation results for attitude control of a network of spacecraft demonstrate the effectiveness and capabilities of our proposed distributed control algorithms.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129601461","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}
{"title":"Extended gossip protocol for diffusion of multiple messages and its percolation probability","authors":"Tetsuya Ishikawa, T. Hayakawa","doi":"10.1109/CDC.2011.6160898","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160898","url":null,"abstract":"Gossip protocol is a randomized broadcast protocol proposed in the field of communication engineering. Gossip protocol is applicable to, for example, a routing protocol on the ad hoc networks. In this paper, we propose an extended gossip protocol which can deal with the multiple messages broadcasting, and analyze the percolation probability of the extended gossip protocol through the percolation theory. In the analysis, we compare 2 cases, one is the case where the source node broadcasts messages in the same time slot, and the other where the source node divides the messages into some groups and broadcasts the messages one after another. Finally, we show some numerical simulation of extended gossip protocol and investigate the property of its percolation probability.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129817832","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}
{"title":"Explicit feasible initialization for nonlinear MPC with guaranteed stability","authors":"M. S. Darup, M. Mönnigmann","doi":"10.1109/CDC.2011.6160715","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160715","url":null,"abstract":"We present a method for the computation of control invariant (c.i.) sets and a simple suboptimal explicit controller for a large class of constrained nonlinear discrete time systems. The explicit controller provides, for any point in the c.i. set, a finite sequence of input values that drive the system to the origin. These input sequences may serve as feasible initializations for the nonlinear program (NLP) associated to nonlinear model predictive control (NMPC). The proposed method is a straightforward extension of an existing method for the computation of c.i. sets, which we augment by a mechanism to record feasible control actions. In contrast to existing explicit NMPC approaches, the explicit control law is calculated without solving the underlying NLP. The method is computationally expensive, but most of the computational effort can be moved offline, and the evaluation of the resulting explicit controller is quite fast.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128723501","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}
{"title":"Monitoring and fault detection in a reverse osmosis plant using principal component analysis","authors":"D. Garcia-Alvarez, M. J. Fuente, L. Palacín","doi":"10.1109/CDC.2011.6160345","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160345","url":null,"abstract":"This paper presents a monitoring and fault detection system based on principal component analysis techniques (PCA) for a simulated reverse osmosis desalination plant.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128772274","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}
{"title":"State estimators for a class of nonlinear systems","authors":"R. Stadlmayr, A. Siuka, H. Daxberger","doi":"10.1109/CDC.2011.6160703","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160703","url":null,"abstract":"This contribution is dedicated to the state observer design for a certain class of nonlinear dynamic systems. Moreover this approach is intended as an extension to many known controller design methods, where almost all state variables are necessary for the evaluation of the control law, but only a part of the state vector can be measured. The immeasurable parts of state variables have to be estimated for the implementation. In this paper we depart from a given control law, which leads to a (uniformly) asymptotically stable closed loop system. A dynamic extension of the controller by means of an observer provides an estimation for the immeasurable states, but the observer does not compromise the stability of the overall system such that the combination of the nonlinear controller and the state observer is also an asymptotically stable system. During the observer design a linear inhomogeneous set of partial differential equations (pde) have to be solved and we state conditions for the solvability of the pde's, which can be checked in advance in order to get an information, if the pde's are solvable. The observer design procedure is presented for the unstable mechanical benchmark example inertia wheel pendulum and the permanent magnet synchronous drive.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128565122","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}
{"title":"The Local Polynomial Method for nonparametric system identification: Improvements and experimentation","authors":"M. Gevers, R. Pintelon, J. Schoukens","doi":"10.1109/CDC.2011.6160311","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160311","url":null,"abstract":"The Local Polynomial Method (LPM) is a recently developed procedure for nonparametric estimation of the Frequency Response Function (FRF) of a linear system. Compared with other nonparametric FRF estimates based on windowing techniques, it has proved to be remarkably efficient in reducing the leakage errors caused by the application of Fourier transform techniques to non periodic data. In this paper we propose a modification of the LPM that takes account explicitly of constraints between the coefficients of the polynomials at neighbouring frequencies. This new variant contributes a new and significant reduction in the Mean Square Error of the FRF estimates. We also discuss the effects of the various design parameters on the accuracy of the estimates.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625121","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}
{"title":"Output consensus for networks of non-identical introspective agents","authors":"Tao Yang, A. Saberi, A. Stoorvogel, H. F. Grip","doi":"10.1109/CDC.2011.6160850","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160850","url":null,"abstract":"In this paper, we consider three problems, namely, the output consensus problem, the model-reference output consensus problem, and the regulation of output consensus problem, for a network of non-identical right-invertible linear agents. The network provides each agent with a linear combination of multiple agents' outputs. We assume that all the agents are introspective, meaning that they have access to their own local measurements. Under this assumption, we then propose a distributed linear protocol to solve each problem for a broad class of network topologies, including not only Laplacian topologies for a directed graph which contains a directed spanning tree, but a wide family of asymmetric topologies.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128674274","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}
{"title":"Full order observers for linear DAEs","authors":"Karen Bobinyec, S. Campbell, P. Kunkel","doi":"10.1109/CDC.2011.6160215","DOIUrl":"https://doi.org/10.1109/CDC.2011.6160215","url":null,"abstract":"Observer design for descriptor systems, or systems of differential algebraic equations (DAEs) as they are also known, is well studied in the linear time invariant (LTI) case. However, those studies do not readily extend to general linear time varying (LTV) or nonlinear descriptor systems. This paper presents an alternative approach for observer design that not only works for the LTI case but also shows great potential for the design of observers for general LTV descriptor systems.","PeriodicalId":360068,"journal":{"name":"IEEE Conference on Decision and Control and European Control Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129068251","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}