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American Control Conference, 2004. Proceedings of the 2004

Date 2004

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  • 2004 American Control Conference

    Publication Year: 2004, Page(s): 0_1
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  • 2004 American Control Conference [front cover]

    Publication Year: 2004, Page(s): 0_1
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  • [Inside front cover - Blank]

    Publication Year: 2004, Page(s): 0_2
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  • Proceedings of the 2004 American Control Conference

    Publication Year: 2004, Page(s): i
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  • Copyright

    Publication Year: 2004, Page(s): ii
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  • 2004 ACC technical program

    Publication Year: 2004, Page(s):iii - viii
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  • Table of contents

    Publication Year: 2004, Page(s):ix - lxiv
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  • [Breaker page]

    Publication Year: 2004, Page(s): lxv
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  • Closed form minimax time-delay filters for underdamped systems

    Publication Year: 2004, Page(s):4855 - 4860 vol.6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (333 KB)

    This paper derives closed form solutions for the parameters of a time-delay filter designed to be robust to uncertainties in frequencies to be cancelled. It is shown that the slope of the magnitude plot of the two time-delay filter is zero at the nominal frequency indicating that it is a local maximum. This information is used for deriving the solution of the parameters of the time-delay filter in... View full abstract»

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  • On-line optimization of a batch reaction - development and experimental demonstration

    Publication Year: 2004, Page(s):4861 - 4866 vol.6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (395 KB) | HTML iconHTML

    The approach is to observe the batch progress and use in-situ spectroscopic measurements to adjust values of model coefficients of the reaction system on-line, then to use the up-dated model to determine an optimum recipe for the remainder of the batch process. The methodology is illustrated using experimental and simulated semi-batch reactor data. View full abstract»

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  • A novel control scheme for typical unstable processes with time delay

    Publication Year: 2004, Page(s):4867 - 4872 vol.6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (370 KB) | HTML iconHTML

    A new two-degree-of-freedom control structure is proposed for controlling unstable processes with time delay. The setpoint tracking is of open-loop control and therefore is decoupled from the load disturbance rejection, for which the controller is analytically designed in terms of H/sub 2/ optimal performance specification. Meanwhile, a conventional proportional (P) controller is additionally empl... View full abstract»

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  • On the wafer/pad friction of linear chemical-mechanical planarization (CMP): modeling, analysis and experiments

    Publication Year: 2004, Page(s):4873 - 4878 vol.6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB) | HTML iconHTML

    In this paper, we present a modeling and monitoring scheme of the friction between the wafer and polishing pad for the linear chemical-mechanical planarization (CMP) processes. Kinematic analysis of the linear CMP system is investigated and a distributed LuGre dynamic friction model is utilized to capture the friction forces generated by the wafer/pad interactions. We present an experimental valid... View full abstract»

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  • A BMI based design for robust PID controllers with two-degrees-of-freedom structure

    Publication Year: 2004, Page(s):4879 - 4884 vol.6
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (339 KB) | HTML iconHTML

    This paper provides a design method for two-degrees-of-freedom I-PD (2DOF-I-PD) controllers including a switched PD compensator based on bilinear matrix inequalities (BMIs). Two design specifications based on the H2 norm are formulated in BMIs, and PID parameters can be exactly obtained by solving the BMI problems via branch and bound algorithms. A set of PD compensators can be obtained simultaneo... View full abstract»

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  • Identification of a chemical process for fault detection application

    Publication Year: 2004, Page(s):4885 - 4890 vol.6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    This paper presents the application results concerning the fault detection of a dynamic process using linear system identification and model-based residual generation techniques. The first step of the considered approach consists of identifying different families of linear models for the monitored system in order to describe the dynamic behaviour of the considered process. The second step of the s... View full abstract»

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  • Multi-objective input signal design for plant friendly identification of process systems

    Publication Year: 2004, Page(s):4891 - 4896 vol.6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (396 KB) | HTML iconHTML

    System identification is the process of constructing an accurate and reliable dynamic mathematical model of the system from observed data and available knowledge. The choice of inputs used for perturbing the system is critical in the identification and model building exercise. One of the major objectives of system identification is accurate estimation of the system parameters. Identification of ch... View full abstract»

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  • Inherent issues in networked control systems: a survey

    Publication Year: 2004, Page(s):4897 - 4902 vol.6
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (505 KB) | HTML iconHTML

    Due to major advancements in the area of networking over the past decade, a new paradigm of control systems has emerged, namely networked control systems. Such systems differ from classical control systems in that their control loops are closed around communication networks. Thus, the need for new stability and performance guarantees arises. In this paper, we aim to shed some light on the major ad... View full abstract»

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  • Feedback stabilization over signal-to-noise ratio constrained channels

    Publication Year: 2004, Page(s):4903 - 4908 vol.6
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (383 KB) | HTML iconHTML

    There has recently been significant interest in feedback stabilization problems over communication channels, including several with bit rate limited feedback. Motivated by considering one source of such bit rate limits, we study the problem of stabilization over a signal-to-noise ratio (SNR) constrained channel. We discuss both continuous and discrete time cases, and show that for either state fee... View full abstract»

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  • Inverted pendulum stabilization through the Ethernet network, performance analysis

    Publication Year: 2004, Page(s):4909 - 4914 vol.6
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (371 KB) | HTML iconHTML

    Networked control systems are becoming more and more attractive due to lower costs of installation, maintenance and scalability compared to traditional ones. However, problems due to the transmission delay cannot be neglected. Referring to a single subnet network, the induced delay affects control performances depending both on the medium access control (MAC) method and on the network load. In thi... View full abstract»

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  • Stability of quantized control systems under dynamic bit assignment

    Publication Year: 2004, Page(s):4915 - 4920 vol.6
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (382 KB) | HTML iconHTML

    This paper studies the stability of a quantized feedback control system. In recent years, there have been a number of papers characterizing the minimum information rate required to assure closed loop stability. An inherent constraint on these quantized control systems is that the number of quantization levels must be an integer. In our opinion, insufficient attention has been paid to this constrai... View full abstract»

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  • A study on decentralized receding horizon control for decoupled systems

    Publication Year: 2004, Page(s):4921 - 4926 vol.6
    Cited by:  Papers (26)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (491 KB) | HTML iconHTML

    We consider a set of decoupled dynamical systems and an optimal control problem where cost function and constraints couple the dynamical behavior of the systems. The coupling is described through a connected graph where each system is a node, and cost and constraints of the optimization problem associated to each node are only function of its state and the states of its neighbors. For such scenari... View full abstract»

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  • On the synthesis of control laws for a network of autonomous agents

    Publication Year: 2004, Page(s):4927 - 4932 vol.6
    Cited by:  Papers (9)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    We study the synthesis problem of a LQR controller when the matrix describing the control law is additionally constrained to lie in a particular vector space. Our motivation is the use of such control laws to stabilize networks of autonomous agents in a decentralized fashion; with the information flow being dictated by the constraints of a pre-specified topology. We formulate the problem as an opt... View full abstract»

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  • Convex synthesis of controllers for consensus

    Publication Year: 2004, Page(s):4933 - 4938 vol.6
    Cited by:  Papers (13)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (421 KB) | HTML iconHTML

    We develop convex conditions that are necessary and sufficient for the existence of a controller that yields a closed loop that achieves consensus. The conditions generate controllers with no particular communication structure, but with optimal /spl Hscr//sub 2/ performance on the non-consensus part of the closed loop. We further explore the conditions to impose topology on the interconnection str... View full abstract»

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  • Consensus of information under dynamically changing interaction topologies

    Publication Year: 2004, Page(s):4939 - 4944 vol.6
    Cited by:  Papers (34)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (514 KB) | HTML iconHTML

    This paper considers the problem of information consensus among multiple agents in the presence of limited and unreliable information exchange with dynamically changing interaction topologies. Both discrete and continuous update schemes are proposed for information consensus. The paper shows that information consensus under dynamically changing interaction topologies can be achieved asymptotically... View full abstract»

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  • Information structures to secure control of globally rigid formations

    Publication Year: 2004, Page(s):4945 - 4950 vol.6
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (516 KB) | HTML iconHTML

    Sensor and network topologies of rigid formations with distance information between mobile autonomous agents are considered. An approach based on rigidity for creating such topologies was suggested in our previous work. Here, we first illustrate some potential scenarios on formations that require unambiguity in the knowledge of distances between every pair of agents in a formation. Then, we show h... View full abstract»

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  • Information structures to control formation splitting and merging

    Publication Year: 2004, Page(s):4951 - 4956 vol.6
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (513 KB) | HTML iconHTML

    This paper focuses on developing techniques and strategies for the analysis and design of sensor and network topologies required to achieve rigid formations of mobile autonomous agents for cooperative tasks. These strategies ensure minimum number of changes in the set of sensing and communication links between agents during splitting and merging operations. That is, in splitting, all the links bet... View full abstract»

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